diff options
author | oulijun <oulijun@huawei.com> | 2016-07-21 19:06:38 +0800 |
---|---|---|
committer | Doug Ledford <dledford@redhat.com> | 2016-08-22 14:02:32 -0400 |
commit | 9a4435375cd151e07c0c38fa601b00115986091b (patch) | |
tree | cb182de5f03820ee4da2e23f33112e2c8ad58003 | |
parent | 69bafce8077bc3515eb8a1b2ac8f87dd39cf6838 (diff) | |
download | linux-9a4435375cd151e07c0c38fa601b00115986091b.tar.bz2 |
IB/hns: Add driver files for hns RoCE driver
These are the various new source code files for the Hisilicon
RoCE driver for ARM architecture.
Signed-off-by: Wei Hu <xavier.huwei@huawei.com>
Signed-off-by: Nenglong Zhao <zhaonenglong@hisilicon.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
-rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_ah.c | 128 | ||||
-rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_alloc.c | 257 | ||||
-rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_cmd.c | 368 | ||||
-rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_cmd.h | 80 | ||||
-rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_common.h | 325 | ||||
-rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_cq.c | 446 | ||||
-rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_device.h | 734 | ||||
-rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_eq.c | 762 | ||||
-rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_eq.h | 130 | ||||
-rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_hem.c | 476 | ||||
-rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_hem.h | 131 | ||||
-rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_hw_v1.c | 2781 | ||||
-rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_hw_v1.h | 981 | ||||
-rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_main.c | 1059 | ||||
-rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_mr.c | 614 | ||||
-rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_pd.c | 144 | ||||
-rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_qp.c | 855 | ||||
-rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_user.h | 53 |
18 files changed, 10324 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_ah.c b/drivers/infiniband/hw/hns/hns_roce_ah.c new file mode 100644 index 000000000000..24f79ee39fdf --- /dev/null +++ b/drivers/infiniband/hw/hns/hns_roce_ah.c @@ -0,0 +1,128 @@ +/* + * Copyright (c) 2016 Hisilicon Limited. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/platform_device.h> +#include <rdma/ib_addr.h> +#include <rdma/ib_cache.h> +#include "hns_roce_device.h" + +#define HNS_ROCE_PORT_NUM_SHIFT 24 +#define HNS_ROCE_VLAN_SL_BIT_MASK 7 +#define HNS_ROCE_VLAN_SL_SHIFT 13 + +struct ib_ah *hns_roce_create_ah(struct ib_pd *ibpd, struct ib_ah_attr *ah_attr) +{ + struct hns_roce_dev *hr_dev = to_hr_dev(ibpd->device); + struct device *dev = &hr_dev->pdev->dev; + struct ib_gid_attr gid_attr; + struct hns_roce_ah *ah; + u16 vlan_tag = 0xffff; + struct in6_addr in6; + union ib_gid sgid; + int ret; + + ah = kzalloc(sizeof(*ah), GFP_ATOMIC); + if (!ah) + return ERR_PTR(-ENOMEM); + + /* Get mac address */ + memcpy(&in6, ah_attr->grh.dgid.raw, sizeof(ah_attr->grh.dgid.raw)); + if (rdma_is_multicast_addr(&in6)) + rdma_get_mcast_mac(&in6, ah->av.mac); + else + memcpy(ah->av.mac, ah_attr->dmac, sizeof(ah_attr->dmac)); + + /* Get source gid */ + ret = ib_get_cached_gid(ibpd->device, ah_attr->port_num, + ah_attr->grh.sgid_index, &sgid, &gid_attr); + if (ret) { + dev_err(dev, "get sgid failed! ret = %d\n", ret); + kfree(ah); + return ERR_PTR(ret); + } + + if (gid_attr.ndev) { + if (is_vlan_dev(gid_attr.ndev)) + vlan_tag = vlan_dev_vlan_id(gid_attr.ndev); + dev_put(gid_attr.ndev); + } + + if (vlan_tag < 0x1000) + vlan_tag |= (ah_attr->sl & HNS_ROCE_VLAN_SL_BIT_MASK) << + HNS_ROCE_VLAN_SL_SHIFT; + + ah->av.port_pd = cpu_to_be32(to_hr_pd(ibpd)->pdn | (ah_attr->port_num << + HNS_ROCE_PORT_NUM_SHIFT)); + ah->av.gid_index = ah_attr->grh.sgid_index; + ah->av.vlan = cpu_to_le16(vlan_tag); + dev_dbg(dev, "gid_index = 0x%x,vlan = 0x%x\n", ah->av.gid_index, + ah->av.vlan); + + if (ah_attr->static_rate) + ah->av.stat_rate = IB_RATE_10_GBPS; + + memcpy(ah->av.dgid, ah_attr->grh.dgid.raw, HNS_ROCE_GID_SIZE); + ah->av.sl_tclass_flowlabel = cpu_to_le32(ah_attr->sl << + HNS_ROCE_SL_SHIFT); + + return &ah->ibah; +} + +int hns_roce_query_ah(struct ib_ah *ibah, struct ib_ah_attr *ah_attr) +{ + struct hns_roce_ah *ah = to_hr_ah(ibah); + + memset(ah_attr, 0, sizeof(*ah_attr)); + + ah_attr->sl = le32_to_cpu(ah->av.sl_tclass_flowlabel) >> + HNS_ROCE_SL_SHIFT; + ah_attr->port_num = le32_to_cpu(ah->av.port_pd) >> + HNS_ROCE_PORT_NUM_SHIFT; + ah_attr->static_rate = ah->av.stat_rate; + ah_attr->ah_flags = IB_AH_GRH; + ah_attr->grh.traffic_class = le32_to_cpu(ah->av.sl_tclass_flowlabel) >> + HNS_ROCE_TCLASS_SHIFT; + ah_attr->grh.flow_label = le32_to_cpu(ah->av.sl_tclass_flowlabel) & + HNS_ROCE_FLOW_LABLE_MASK; + ah_attr->grh.hop_limit = ah->av.hop_limit; + ah_attr->grh.sgid_index = ah->av.gid_index; + memcpy(ah_attr->grh.dgid.raw, ah->av.dgid, HNS_ROCE_GID_SIZE); + + return 0; +} + +int hns_roce_destroy_ah(struct ib_ah *ah) +{ + kfree(to_hr_ah(ah)); + + return 0; +} diff --git a/drivers/infiniband/hw/hns/hns_roce_alloc.c b/drivers/infiniband/hw/hns/hns_roce_alloc.c new file mode 100644 index 000000000000..863a17a2de40 --- /dev/null +++ b/drivers/infiniband/hw/hns/hns_roce_alloc.c @@ -0,0 +1,257 @@ +/* + * Copyright (c) 2016 Hisilicon Limited. + * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/platform_device.h> +#include "hns_roce_device.h" + +int hns_roce_bitmap_alloc(struct hns_roce_bitmap *bitmap, unsigned long *obj) +{ + int ret = 0; + + spin_lock(&bitmap->lock); + *obj = find_next_zero_bit(bitmap->table, bitmap->max, bitmap->last); + if (*obj >= bitmap->max) { + bitmap->top = (bitmap->top + bitmap->max + bitmap->reserved_top) + & bitmap->mask; + *obj = find_first_zero_bit(bitmap->table, bitmap->max); + } + + if (*obj < bitmap->max) { + set_bit(*obj, bitmap->table); + bitmap->last = (*obj + 1); + if (bitmap->last == bitmap->max) + bitmap->last = 0; + *obj |= bitmap->top; + } else { + ret = -1; + } + + spin_unlock(&bitmap->lock); + + return ret; +} + +void hns_roce_bitmap_free(struct hns_roce_bitmap *bitmap, unsigned long obj) +{ + hns_roce_bitmap_free_range(bitmap, obj, 1); +} + +int hns_roce_bitmap_alloc_range(struct hns_roce_bitmap *bitmap, int cnt, + int align, unsigned long *obj) +{ + int ret = 0; + int i; + + if (likely(cnt == 1 && align == 1)) + return hns_roce_bitmap_alloc(bitmap, obj); + + spin_lock(&bitmap->lock); + + *obj = bitmap_find_next_zero_area(bitmap->table, bitmap->max, + bitmap->last, cnt, align - 1); + if (*obj >= bitmap->max) { + bitmap->top = (bitmap->top + bitmap->max + bitmap->reserved_top) + & bitmap->mask; + *obj = bitmap_find_next_zero_area(bitmap->table, bitmap->max, 0, + cnt, align - 1); + } + + if (*obj < bitmap->max) { + for (i = 0; i < cnt; i++) + set_bit(*obj + i, bitmap->table); + + if (*obj == bitmap->last) { + bitmap->last = (*obj + cnt); + if (bitmap->last >= bitmap->max) + bitmap->last = 0; + } + *obj |= bitmap->top; + } else { + ret = -1; + } + + spin_unlock(&bitmap->lock); + + return ret; +} + +void hns_roce_bitmap_free_range(struct hns_roce_bitmap *bitmap, + unsigned long obj, int cnt) +{ + int i; + + obj &= bitmap->max + bitmap->reserved_top - 1; + + spin_lock(&bitmap->lock); + for (i = 0; i < cnt; i++) + clear_bit(obj + i, bitmap->table); + + bitmap->last = min(bitmap->last, obj); + bitmap->top = (bitmap->top + bitmap->max + bitmap->reserved_top) + & bitmap->mask; + spin_unlock(&bitmap->lock); +} + +int hns_roce_bitmap_init(struct hns_roce_bitmap *bitmap, u32 num, u32 mask, + u32 reserved_bot, u32 reserved_top) +{ + u32 i; + + if (num != roundup_pow_of_two(num)) + return -EINVAL; + + bitmap->last = 0; + bitmap->top = 0; + bitmap->max = num - reserved_top; + bitmap->mask = mask; + bitmap->reserved_top = reserved_top; + spin_lock_init(&bitmap->lock); + bitmap->table = kcalloc(BITS_TO_LONGS(bitmap->max), sizeof(long), + GFP_KERNEL); + if (!bitmap->table) + return -ENOMEM; + + for (i = 0; i < reserved_bot; ++i) + set_bit(i, bitmap->table); + + return 0; +} + +void hns_roce_bitmap_cleanup(struct hns_roce_bitmap *bitmap) +{ + kfree(bitmap->table); +} + +void hns_roce_buf_free(struct hns_roce_dev *hr_dev, u32 size, + struct hns_roce_buf *buf) +{ + int i; + struct device *dev = &hr_dev->pdev->dev; + u32 bits_per_long = BITS_PER_LONG; + + if (buf->nbufs == 1) { + dma_free_coherent(dev, size, buf->direct.buf, buf->direct.map); + } else { + if (bits_per_long == 64) + vunmap(buf->direct.buf); + + for (i = 0; i < buf->nbufs; ++i) + if (buf->page_list[i].buf) + dma_free_coherent(&hr_dev->pdev->dev, PAGE_SIZE, + buf->page_list[i].buf, + buf->page_list[i].map); + kfree(buf->page_list); + } +} + +int hns_roce_buf_alloc(struct hns_roce_dev *hr_dev, u32 size, u32 max_direct, + struct hns_roce_buf *buf) +{ + int i = 0; + dma_addr_t t; + struct page **pages; + struct device *dev = &hr_dev->pdev->dev; + u32 bits_per_long = BITS_PER_LONG; + + /* SQ/RQ buf lease than one page, SQ + RQ = 8K */ + if (size <= max_direct) { + buf->nbufs = 1; + /* Npages calculated by page_size */ + buf->npages = 1 << get_order(size); + buf->page_shift = PAGE_SHIFT; + /* MTT PA must be recorded in 4k alignment, t is 4k aligned */ + buf->direct.buf = dma_alloc_coherent(dev, size, &t, GFP_KERNEL); + if (!buf->direct.buf) + return -ENOMEM; + + buf->direct.map = t; + + while (t & ((1 << buf->page_shift) - 1)) { + --buf->page_shift; + buf->npages *= 2; + } + + memset(buf->direct.buf, 0, size); + } else { + buf->nbufs = (size + PAGE_SIZE - 1) / PAGE_SIZE; + buf->npages = buf->nbufs; + buf->page_shift = PAGE_SHIFT; + buf->page_list = kcalloc(buf->nbufs, sizeof(*buf->page_list), + GFP_KERNEL); + + if (!buf->page_list) + return -ENOMEM; + + for (i = 0; i < buf->nbufs; ++i) { + buf->page_list[i].buf = dma_alloc_coherent(dev, + PAGE_SIZE, &t, + GFP_KERNEL); + + if (!buf->page_list[i].buf) + goto err_free; + + buf->page_list[i].map = t; + memset(buf->page_list[i].buf, 0, PAGE_SIZE); + } + if (bits_per_long == 64) { + pages = kmalloc_array(buf->nbufs, sizeof(*pages), + GFP_KERNEL); + if (!pages) + goto err_free; + + for (i = 0; i < buf->nbufs; ++i) + pages[i] = virt_to_page(buf->page_list[i].buf); + + buf->direct.buf = vmap(pages, buf->nbufs, VM_MAP, + PAGE_KERNEL); + kfree(pages); + if (!buf->direct.buf) + goto err_free; + } + } + + return 0; + +err_free: + hns_roce_buf_free(hr_dev, size, buf); + return -ENOMEM; +} + +void hns_roce_cleanup_bitmap(struct hns_roce_dev *hr_dev) +{ + hns_roce_cleanup_qp_table(hr_dev); + hns_roce_cleanup_cq_table(hr_dev); + hns_roce_cleanup_mr_table(hr_dev); + hns_roce_cleanup_pd_table(hr_dev); + hns_roce_cleanup_uar_table(hr_dev); +} diff --git a/drivers/infiniband/hw/hns/hns_roce_cmd.c b/drivers/infiniband/hw/hns/hns_roce_cmd.c new file mode 100644 index 000000000000..2a0b6c05da5f --- /dev/null +++ b/drivers/infiniband/hw/hns/hns_roce_cmd.c @@ -0,0 +1,368 @@ +/* + * Copyright (c) 2016 Hisilicon Limited. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/dmapool.h> +#include <linux/platform_device.h> +#include "hns_roce_common.h" +#include "hns_roce_device.h" +#include "hns_roce_cmd.h" + +#define CMD_POLL_TOKEN 0xffff +#define CMD_MAX_NUM 32 +#define STATUS_MASK 0xff +#define CMD_TOKEN_MASK 0x1f +#define GO_BIT_TIMEOUT_MSECS 10000 + +enum { + HCR_TOKEN_OFFSET = 0x14, + HCR_STATUS_OFFSET = 0x18, + HCR_GO_BIT = 15, +}; + +static int cmd_pending(struct hns_roce_dev *hr_dev) +{ + u32 status = readl(hr_dev->cmd.hcr + HCR_TOKEN_OFFSET); + + return (!!(status & (1 << HCR_GO_BIT))); +} + +/* this function should be serialized with "hcr_mutex" */ +static int __hns_roce_cmd_mbox_post_hw(struct hns_roce_dev *hr_dev, + u64 in_param, u64 out_param, + u32 in_modifier, u8 op_modifier, u16 op, + u16 token, int event) +{ + struct hns_roce_cmdq *cmd = &hr_dev->cmd; + struct device *dev = &hr_dev->pdev->dev; + u32 __iomem *hcr = (u32 *)cmd->hcr; + int ret = -EAGAIN; + unsigned long end; + u32 val = 0; + + end = msecs_to_jiffies(GO_BIT_TIMEOUT_MSECS) + jiffies; + while (cmd_pending(hr_dev)) { + if (time_after(jiffies, end)) { + dev_dbg(dev, "jiffies=%d end=%d\n", (int)jiffies, + (int)end); + goto out; + } + cond_resched(); + } + + roce_set_field(val, ROCEE_MB6_ROCEE_MB_CMD_M, ROCEE_MB6_ROCEE_MB_CMD_S, + op); + roce_set_field(val, ROCEE_MB6_ROCEE_MB_CMD_MDF_M, + ROCEE_MB6_ROCEE_MB_CMD_MDF_S, op_modifier); + roce_set_bit(val, ROCEE_MB6_ROCEE_MB_EVENT_S, event); + roce_set_bit(val, ROCEE_MB6_ROCEE_MB_HW_RUN_S, 1); + roce_set_field(val, ROCEE_MB6_ROCEE_MB_TOKEN_M, + ROCEE_MB6_ROCEE_MB_TOKEN_S, token); + + __raw_writeq(cpu_to_le64(in_param), hcr + 0); + __raw_writeq(cpu_to_le64(out_param), hcr + 2); + __raw_writel(cpu_to_le32(in_modifier), hcr + 4); + /* Memory barrier */ + wmb(); + + __raw_writel(cpu_to_le32(val), hcr + 5); + + mmiowb(); + ret = 0; + +out: + return ret; +} + +static int hns_roce_cmd_mbox_post_hw(struct hns_roce_dev *hr_dev, u64 in_param, + u64 out_param, u32 in_modifier, + u8 op_modifier, u16 op, u16 token, + int event) +{ + struct hns_roce_cmdq *cmd = &hr_dev->cmd; + int ret = -EAGAIN; + + mutex_lock(&cmd->hcr_mutex); + ret = __hns_roce_cmd_mbox_post_hw(hr_dev, in_param, out_param, + in_modifier, op_modifier, op, token, + event); + mutex_unlock(&cmd->hcr_mutex); + + return ret; +} + +/* this should be called with "poll_sem" */ +static int __hns_roce_cmd_mbox_poll(struct hns_roce_dev *hr_dev, u64 in_param, + u64 out_param, unsigned long in_modifier, + u8 op_modifier, u16 op, + unsigned long timeout) +{ + struct device *dev = &hr_dev->pdev->dev; + u8 __iomem *hcr = hr_dev->cmd.hcr; + unsigned long end = 0; + u32 status = 0; + int ret; + + ret = hns_roce_cmd_mbox_post_hw(hr_dev, in_param, out_param, + in_modifier, op_modifier, op, + CMD_POLL_TOKEN, 0); + if (ret) { + dev_err(dev, "[cmd_poll]hns_roce_cmd_mbox_post_hw failed\n"); + goto out; + } + + end = msecs_to_jiffies(timeout) + jiffies; + while (cmd_pending(hr_dev) && time_before(jiffies, end)) + cond_resched(); + + if (cmd_pending(hr_dev)) { + dev_err(dev, "[cmd_poll]hw run cmd TIMEDOUT!\n"); + ret = -ETIMEDOUT; + goto out; + } + + status = le32_to_cpu((__force __be32) + __raw_readl(hcr + HCR_STATUS_OFFSET)); + if ((status & STATUS_MASK) != 0x1) { + dev_err(dev, "mailbox status 0x%x!\n", status); + ret = -EBUSY; + goto out; + } + +out: + return ret; +} + +static int hns_roce_cmd_mbox_poll(struct hns_roce_dev *hr_dev, u64 in_param, + u64 out_param, unsigned long in_modifier, + u8 op_modifier, u16 op, unsigned long timeout) +{ + int ret; + + down(&hr_dev->cmd.poll_sem); + ret = __hns_roce_cmd_mbox_poll(hr_dev, in_param, out_param, in_modifier, + op_modifier, op, timeout); + up(&hr_dev->cmd.poll_sem); + + return ret; +} + +void hns_roce_cmd_event(struct hns_roce_dev *hr_dev, u16 token, u8 status, + u64 out_param) +{ + struct hns_roce_cmd_context + *context = &hr_dev->cmd.context[token & hr_dev->cmd.token_mask]; + + if (token != context->token) + return; + + context->result = (status == HNS_ROCE_CMD_SUCCESS) ? 0 : (-EIO); + context->out_param = out_param; + complete(&context->done); +} + +/* this should be called with "use_events" */ +static int __hns_roce_cmd_mbox_wait(struct hns_roce_dev *hr_dev, u64 in_param, + u64 out_param, unsigned long in_modifier, + u8 op_modifier, u16 op, + unsigned long timeout) +{ + struct hns_roce_cmdq *cmd = &hr_dev->cmd; + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_cmd_context *context; + int ret = 0; + + spin_lock(&cmd->context_lock); + WARN_ON(cmd->free_head < 0); + context = &cmd->context[cmd->free_head]; + context->token += cmd->token_mask + 1; + cmd->free_head = context->next; + spin_unlock(&cmd->context_lock); + + init_completion(&context->done); + + ret = hns_roce_cmd_mbox_post_hw(hr_dev, in_param, out_param, + in_modifier, op_modifier, op, + context->token, 1); + if (ret) + goto out; + + /* + * It is timeout when wait_for_completion_timeout return 0 + * The return value is the time limit set in advance + * how many seconds showing + */ + if (!wait_for_completion_timeout(&context->done, + msecs_to_jiffies(timeout))) { + dev_err(dev, "[cmd]wait_for_completion_timeout timeout\n"); + ret = -EBUSY; + goto out; + } + + ret = context->result; + if (ret) { + dev_err(dev, "[cmd]event mod cmd process error!err=%d\n", ret); + goto out; + } + +out: + spin_lock(&cmd->context_lock); + context->next = cmd->free_head; + cmd->free_head = context - cmd->context; + spin_unlock(&cmd->context_lock); + + return ret; +} + +static int hns_roce_cmd_mbox_wait(struct hns_roce_dev *hr_dev, u64 in_param, + u64 out_param, unsigned long in_modifier, + u8 op_modifier, u16 op, unsigned long timeout) +{ + int ret = 0; + + down(&hr_dev->cmd.event_sem); + ret = __hns_roce_cmd_mbox_wait(hr_dev, in_param, out_param, + in_modifier, op_modifier, op, timeout); + up(&hr_dev->cmd.event_sem); + + return ret; +} + +int hns_roce_cmd_mbox(struct hns_roce_dev *hr_dev, u64 in_param, u64 out_param, + unsigned long in_modifier, u8 op_modifier, u16 op, + unsigned long timeout) +{ + if (hr_dev->cmd.use_events) + return hns_roce_cmd_mbox_wait(hr_dev, in_param, out_param, + in_modifier, op_modifier, op, + timeout); + else + return hns_roce_cmd_mbox_poll(hr_dev, in_param, out_param, + in_modifier, op_modifier, op, + timeout); +} + +int hns_roce_cmd_init(struct hns_roce_dev *hr_dev) +{ + struct device *dev = &hr_dev->pdev->dev; + + mutex_init(&hr_dev->cmd.hcr_mutex); + sema_init(&hr_dev->cmd.poll_sem, 1); + hr_dev->cmd.use_events = 0; + hr_dev->cmd.toggle = 1; + hr_dev->cmd.max_cmds = CMD_MAX_NUM; + hr_dev->cmd.hcr = hr_dev->reg_base + ROCEE_MB1_REG; + hr_dev->cmd.pool = dma_pool_create("hns_roce_cmd", dev, + HNS_ROCE_MAILBOX_SIZE, + HNS_ROCE_MAILBOX_SIZE, 0); + if (!hr_dev->cmd.pool) + return -ENOMEM; + + return 0; +} + +void hns_roce_cmd_cleanup(struct hns_roce_dev *hr_dev) +{ + dma_pool_destroy(hr_dev->cmd.pool); +} + +int hns_roce_cmd_use_events(struct hns_roce_dev *hr_dev) +{ + struct hns_roce_cmdq *hr_cmd = &hr_dev->cmd; + int i; + + hr_cmd->context = kmalloc(hr_cmd->max_cmds * + sizeof(struct hns_roce_cmd_context), + GFP_KERNEL); + if (!hr_cmd->context) + return -ENOMEM; + + for (i = 0; i < hr_cmd->max_cmds; ++i) { + hr_cmd->context[i].token = i; + hr_cmd->context[i].next = i + 1; + } + + hr_cmd->context[hr_cmd->max_cmds - 1].next = -1; + hr_cmd->free_head = 0; + + sema_init(&hr_cmd->event_sem, hr_cmd->max_cmds); + spin_lock_init(&hr_cmd->context_lock); + + hr_cmd->token_mask = CMD_TOKEN_MASK; + hr_cmd->use_events = 1; + + down(&hr_cmd->poll_sem); + + return 0; +} + +void hns_roce_cmd_use_polling(struct hns_roce_dev *hr_dev) +{ + struct hns_roce_cmdq *hr_cmd = &hr_dev->cmd; + int i; + + hr_cmd->use_events = 0; + + for (i = 0; i < hr_cmd->max_cmds; ++i) + down(&hr_cmd->event_sem); + + kfree(hr_cmd->context); + up(&hr_cmd->poll_sem); +} + +struct hns_roce_cmd_mailbox + *hns_roce_alloc_cmd_mailbox(struct hns_roce_dev *hr_dev) +{ + struct hns_roce_cmd_mailbox *mailbox; + + mailbox = kmalloc(sizeof(*mailbox), GFP_KERNEL); + if (!mailbox) + return ERR_PTR(-ENOMEM); + + mailbox->buf = dma_pool_alloc(hr_dev->cmd.pool, GFP_KERNEL, + &mailbox->dma); + if (!mailbox->buf) { + kfree(mailbox); + return ERR_PTR(-ENOMEM); + } + + return mailbox; +} + +void hns_roce_free_cmd_mailbox(struct hns_roce_dev *hr_dev, + struct hns_roce_cmd_mailbox *mailbox) +{ + if (!mailbox) + return; + + dma_pool_free(hr_dev->cmd.pool, mailbox->buf, mailbox->dma); + kfree(mailbox); +} diff --git a/drivers/infiniband/hw/hns/hns_roce_cmd.h b/drivers/infiniband/hw/hns/hns_roce_cmd.h new file mode 100644 index 000000000000..e3997d312c55 --- /dev/null +++ b/drivers/infiniband/hw/hns/hns_roce_cmd.h @@ -0,0 +1,80 @@ +/* + * Copyright (c) 2016 Hisilicon Limited. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef _HNS_ROCE_CMD_H +#define _HNS_ROCE_CMD_H + +#define HNS_ROCE_MAILBOX_SIZE 4096 + +enum { + /* TPT commands */ + HNS_ROCE_CMD_SW2HW_MPT = 0xd, + HNS_ROCE_CMD_HW2SW_MPT = 0xf, + + /* CQ commands */ + HNS_ROCE_CMD_SW2HW_CQ = 0x16, + HNS_ROCE_CMD_HW2SW_CQ = 0x17, + + /* QP/EE commands */ + HNS_ROCE_CMD_RST2INIT_QP = 0x19, + HNS_ROCE_CMD_INIT2RTR_QP = 0x1a, + HNS_ROCE_CMD_RTR2RTS_QP = 0x1b, + HNS_ROCE_CMD_RTS2RTS_QP = 0x1c, + HNS_ROCE_CMD_2ERR_QP = 0x1e, + HNS_ROCE_CMD_RTS2SQD_QP = 0x1f, + HNS_ROCE_CMD_SQD2SQD_QP = 0x38, + HNS_ROCE_CMD_SQD2RTS_QP = 0x20, + HNS_ROCE_CMD_2RST_QP = 0x21, + HNS_ROCE_CMD_QUERY_QP = 0x22, +}; + +enum { + HNS_ROCE_CMD_TIME_CLASS_A = 10000, + HNS_ROCE_CMD_TIME_CLASS_B = 10000, + HNS_ROCE_CMD_TIME_CLASS_C = 10000, +}; + +struct hns_roce_cmd_mailbox { + void *buf; + dma_addr_t dma; +}; + +int hns_roce_cmd_mbox(struct hns_roce_dev *hr_dev, u64 in_param, u64 out_param, + unsigned long in_modifier, u8 op_modifier, u16 op, + unsigned long timeout); + +struct hns_roce_cmd_mailbox + *hns_roce_alloc_cmd_mailbox(struct hns_roce_dev *hr_dev); +void hns_roce_free_cmd_mailbox(struct hns_roce_dev *hr_dev, + struct hns_roce_cmd_mailbox *mailbox); + +#endif /* _HNS_ROCE_CMD_H */ diff --git a/drivers/infiniband/hw/hns/hns_roce_common.h b/drivers/infiniband/hw/hns/hns_roce_common.h new file mode 100644 index 000000000000..297016103aa7 --- /dev/null +++ b/drivers/infiniband/hw/hns/hns_roce_common.h @@ -0,0 +1,325 @@ +/* + * Copyright (c) 2016 Hisilicon Limited. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef _HNS_ROCE_COMMON_H +#define _HNS_ROCE_COMMON_H + +#ifndef assert +#define assert(cond) +#endif + +#define roce_write(dev, reg, val) writel((val), (dev)->reg_base + (reg)) +#define roce_read(dev, reg) readl((dev)->reg_base + (reg)) +#define roce_raw_write(value, addr) \ + __raw_writel((__force u32)cpu_to_le32(value), (addr)) + +#define roce_get_field(origin, mask, shift) \ + (((origin) & (mask)) >> (shift)) + +#define roce_get_bit(origin, shift) \ + roce_get_field((origin), (1ul << (shift)), (shift)) + +#define roce_set_field(origin, mask, shift, val) \ + do { \ + (origin) &= (~(mask)); \ + (origin) |= (((u32)(val) << (shift)) & (mask)); \ + } while (0) + +#define roce_set_bit(origin, shift, val) \ + roce_set_field((origin), (1ul << (shift)), (shift), (val)) + +#define ROCEE_GLB_CFG_ROCEE_DB_SQ_MODE_S 3 +#define ROCEE_GLB_CFG_ROCEE_DB_OTH_MODE_S 4 + +#define ROCEE_GLB_CFG_SQ_EXT_DB_MODE_S 5 + +#define ROCEE_GLB_CFG_OTH_EXT_DB_MODE_S 6 + +#define ROCEE_GLB_CFG_ROCEE_PORT_ST_S 10 +#define ROCEE_GLB_CFG_ROCEE_PORT_ST_M \ + (((1UL << 6) - 1) << ROCEE_GLB_CFG_ROCEE_PORT_ST_S) + +#define ROCEE_GLB_CFG_TRP_RAQ_DROP_EN_S 16 + +#define ROCEE_DMAE_USER_CFG1_ROCEE_STREAM_ID_TB_CFG_S 0 +#define ROCEE_DMAE_USER_CFG1_ROCEE_STREAM_ID_TB_CFG_M \ + (((1UL << 24) - 1) << ROCEE_DMAE_USER_CFG1_ROCEE_STREAM_ID_TB_CFG_S) + +#define ROCEE_DMAE_USER_CFG1_ROCEE_CACHE_TB_CFG_S 24 +#define ROCEE_DMAE_USER_CFG1_ROCEE_CACHE_TB_CFG_M \ + (((1UL << 4) - 1) << ROCEE_DMAE_USER_CFG1_ROCEE_CACHE_TB_CFG_S) + +#define ROCEE_DMAE_USER_CFG2_ROCEE_STREAM_ID_PKT_CFG_S 0 +#define ROCEE_DMAE_USER_CFG2_ROCEE_STREAM_ID_PKT_CFG_M \ + (((1UL << 24) - 1) << ROCEE_DMAE_USER_CFG2_ROCEE_STREAM_ID_PKT_CFG_S) + +#define ROCEE_DMAE_USER_CFG2_ROCEE_CACHE_PKT_CFG_S 24 +#define ROCEE_DMAE_USER_CFG2_ROCEE_CACHE_PKT_CFG_M \ + (((1UL << 4) - 1) << ROCEE_DMAE_USER_CFG2_ROCEE_CACHE_PKT_CFG_S) + +#define ROCEE_DB_SQ_WL_ROCEE_DB_SQ_WL_S 0 +#define ROCEE_DB_SQ_WL_ROCEE_DB_SQ_WL_M \ + (((1UL << 16) - 1) << ROCEE_DB_SQ_WL_ROCEE_DB_SQ_WL_S) + +#define ROCEE_DB_SQ_WL_ROCEE_DB_SQ_WL_EMPTY_S 16 +#define ROCEE_DB_SQ_WL_ROCEE_DB_SQ_WL_EMPTY_M \ + (((1UL << 16) - 1) << ROCEE_DB_SQ_WL_ROCEE_DB_SQ_WL_EMPTY_S) + +#define ROCEE_DB_OTHERS_WL_ROCEE_DB_OTH_WL_S 0 +#define ROCEE_DB_OTHERS_WL_ROCEE_DB_OTH_WL_M \ + (((1UL << 16) - 1) << ROCEE_DB_OTHERS_WL_ROCEE_DB_OTH_WL_S) + +#define ROCEE_DB_OTHERS_WL_ROCEE_DB_OTH_WL_EMPTY_S 16 +#define ROCEE_DB_OTHERS_WL_ROCEE_DB_OTH_WL_EMPTY_M \ + (((1UL << 16) - 1) << ROCEE_DB_OTHERS_WL_ROCEE_DB_OTH_WL_EMPTY_S) + +#define ROCEE_RAQ_WL_ROCEE_RAQ_WL_S 0 +#define ROCEE_RAQ_WL_ROCEE_RAQ_WL_M \ + (((1UL << 8) - 1) << ROCEE_RAQ_WL_ROCEE_RAQ_WL_S) + +#define ROCEE_WRMS_POL_TIME_INTERVAL_WRMS_POL_TIME_INTERVAL_S 0 +#define ROCEE_WRMS_POL_TIME_INTERVAL_WRMS_POL_TIME_INTERVAL_M \ + (((1UL << 15) - 1) << \ + ROCEE_WRMS_POL_TIME_INTERVAL_WRMS_POL_TIME_INTERVAL_S) + +#define ROCEE_WRMS_POL_TIME_INTERVAL_WRMS_RAQ_TIMEOUT_CHK_CFG_S 16 +#define ROCEE_WRMS_POL_TIME_INTERVAL_WRMS_RAQ_TIMEOUT_CHK_CFG_M \ + (((1UL << 4) - 1) << \ + ROCEE_WRMS_POL_TIME_INTERVAL_WRMS_RAQ_TIMEOUT_CHK_CFG_S) + +#define ROCEE_WRMS_POL_TIME_INTERVAL_WRMS_RAQ_TIMEOUT_CHK_EN_S 20 + +#define ROCEE_WRMS_POL_TIME_INTERVAL_WRMS_EXT_RAQ_MODE 21 + +#define ROCEE_EXT_DB_SQ_H_EXT_DB_SQ_SHIFT_S 0 +#define ROCEE_EXT_DB_SQ_H_EXT_DB_SQ_SHIFT_M \ + (((1UL << 5) - 1) << ROCEE_EXT_DB_SQ_H_EXT_DB_SQ_SHIFT_S) + +#define ROCEE_EXT_DB_SQ_H_EXT_DB_SQ_BA_H_S 5 +#define ROCEE_EXT_DB_SQ_H_EXT_DB_SQ_BA_H_M \ + (((1UL << 5) - 1) << ROCEE_EXT_DB_SQ_H_EXT_DB_SQ_BA_H_S) + +#define ROCEE_EXT_DB_OTH_H_EXT_DB_OTH_SHIFT_S 0 +#define ROCEE_EXT_DB_OTH_H_EXT_DB_OTH_SHIFT_M \ + (((1UL << 5) - 1) << ROCEE_EXT_DB_OTH_H_EXT_DB_OTH_SHIFT_S) + +#define ROCEE_EXT_DB_SQ_H_EXT_DB_OTH_BA_H_S 5 +#define ROCEE_EXT_DB_SQ_H_EXT_DB_OTH_BA_H_M \ + (((1UL << 5) - 1) << ROCEE_EXT_DB_SQ_H_EXT_DB_OTH_BA_H_S) + +#define ROCEE_EXT_RAQ_H_EXT_RAQ_SHIFT_S 0 +#define ROCEE_EXT_RAQ_H_EXT_RAQ_SHIFT_M \ + (((1UL << 5) - 1) << ROCEE_EXT_RAQ_H_EXT_RAQ_SHIFT_S) + +#define ROCEE_EXT_RAQ_H_EXT_RAQ_BA_H_S 8 +#define ROCEE_EXT_RAQ_H_EXT_RAQ_BA_H_M \ + (((1UL << 5) - 1) << ROCEE_EXT_RAQ_H_EXT_RAQ_BA_H_S) + +#define ROCEE_BT_CMD_H_ROCEE_BT_CMD_IN_MDF_S 0 +#define ROCEE_BT_CMD_H_ROCEE_BT_CMD_IN_MDF_M \ + (((1UL << 19) - 1) << ROCEE_BT_CMD_H_ROCEE_BT_CMD_IN_MDF_S) + +#define ROCEE_BT_CMD_H_ROCEE_BT_CMD_S 19 + +#define ROCEE_BT_CMD_H_ROCEE_BT_CMD_MDF_S 20 +#define ROCEE_BT_CMD_H_ROCEE_BT_CMD_MDF_M \ + (((1UL << 2) - 1) << ROCEE_BT_CMD_H_ROCEE_BT_CMD_MDF_S) + +#define ROCEE_BT_CMD_H_ROCEE_BT_CMD_BA_H_S 22 +#define ROCEE_BT_CMD_H_ROCEE_BT_CMD_BA_H_M \ + (((1UL << 5) - 1) << ROCEE_BT_CMD_H_ROCEE_BT_CMD_BA_H_S) + +#define ROCEE_BT_CMD_H_ROCEE_BT_CMD_HW_SYNS_S 31 + +#define ROCEE_QP1C_CFG0_0_ROCEE_QP1C_QP_ST_S 0 +#define ROCEE_QP1C_CFG0_0_ROCEE_QP1C_QP_ST_M \ + (((1UL << 3) - 1) << ROCEE_QP1C_CFG0_0_ROCEE_QP1C_QP_ST_S) + +#define ROCEE_QP1C_CFG3_0_ROCEE_QP1C_RQ_HEAD_S 0 +#define ROCEE_QP1C_CFG3_0_ROCEE_QP1C_RQ_HEAD_M \ + (((1UL << 15) - 1) << ROCEE_QP1C_CFG3_0_ROCEE_QP1C_RQ_HEAD_S) + +#define ROCEE_MB6_ROCEE_MB_CMD_S 0 +#define ROCEE_MB6_ROCEE_MB_CMD_M \ + (((1UL << 8) - 1) << ROCEE_MB6_ROCEE_MB_CMD_S) + +#define ROCEE_MB6_ROCEE_MB_CMD_MDF_S 8 +#define ROCEE_MB6_ROCEE_MB_CMD_MDF_M \ + (((1UL << 4) - 1) << ROCEE_MB6_ROCEE_MB_CMD_MDF_S) + +#define ROCEE_MB6_ROCEE_MB_EVENT_S 14 + +#define ROCEE_MB6_ROCEE_MB_HW_RUN_S 15 + +#define ROCEE_MB6_ROCEE_MB_TOKEN_S 16 +#define ROCEE_MB6_ROCEE_MB_TOKEN_M \ + (((1UL << 16) - 1) << ROCEE_MB6_ROCEE_MB_TOKEN_S) + +#define ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_INP_H_S 0 +#define ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_INP_H_M \ + (((1UL << 24) - 1) << ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_INP_H_S) + +#define ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_MDF_S 24 +#define ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_MDF_M \ + (((1UL << 4) - 1) << ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_MDF_S) + +#define ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_S 28 +#define ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_M \ + (((1UL << 3) - 1) << ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_S) + +#define ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_HW_SYNS_S 31 + +#define ROCEE_SMAC_H_ROCEE_SMAC_H_S 0 +#define ROCEE_SMAC_H_ROCEE_SMAC_H_M \ + (((1UL << 16) - 1) << ROCEE_SMAC_H_ROCEE_SMAC_H_S) + +#define ROCEE_SMAC_H_ROCEE_PORT_MTU_S 16 +#define ROCEE_SMAC_H_ROCEE_PORT_MTU_M \ + (((1UL << 4) - 1) << ROCEE_SMAC_H_ROCEE_PORT_MTU_S) + +#define ROCEE_CAEP_AEQC_AEQE_SHIFT_CAEP_AEQC_STATE_S 0 +#define ROCEE_CAEP_AEQC_AEQE_SHIFT_CAEP_AEQC_STATE_M \ + (((1UL << 2) - 1) << ROCEE_CAEP_AEQC_AEQE_SHIFT_CAEP_AEQC_STATE_S) + +#define ROCEE_CAEP_AEQC_AEQE_SHIFT_CAEP_AEQC_AEQE_SHIFT_S 8 +#define ROCEE_CAEP_AEQC_AEQE_SHIFT_CAEP_AEQC_AEQE_SHIFT_M \ + (((1UL << 4) - 1) << ROCEE_CAEP_AEQC_AEQE_SHIFT_CAEP_AEQC_AEQE_SHIFT_S) + +#define ROCEE_CAEP_AEQC_AEQE_SHIFT_CAEP_AEQ_ALM_OVF_INT_ST_S 17 + +#define ROCEE_CAEP_AEQE_CUR_IDX_CAEP_AEQ_BT_H_S 0 +#define ROCEE_CAEP_AEQE_CUR_IDX_CAEP_AEQ_BT_H_M \ + (((1UL << 5) - 1) << ROCEE_CAEP_AEQE_CUR_IDX_CAEP_AEQ_BT_H_S) + +#define ROCEE_CAEP_AEQE_CUR_IDX_CAEP_AEQE_CUR_IDX_S 16 +#define ROCEE_CAEP_AEQE_CUR_IDX_CAEP_AEQE_CUR_IDX_M \ + (((1UL << 16) - 1) << ROCEE_CAEP_AEQE_CUR_IDX_CAEP_AEQE_CUR_IDX_S) + +#define ROCEE_CAEP_AEQE_CONS_IDX_CAEP_AEQE_CONS_IDX_S 0 +#define ROCEE_CAEP_AEQE_CONS_IDX_CAEP_AEQE_CONS_IDX_M \ + (((1UL << 16) - 1) << ROCEE_CAEP_AEQE_CONS_IDX_CAEP_AEQE_CONS_IDX_S) + +#define ROCEE_CAEP_CEQC_SHIFT_CAEP_CEQ_ALM_OVF_INT_ST_S 16 +#define ROCEE_CAEP_CE_IRQ_MASK_CAEP_CEQ_ALM_OVF_MASK_S 1 +#define ROCEE_CAEP_CEQ_ALM_OVF_CAEP_CEQ_ALM_OVF_S 0 + +#define ROCEE_CAEP_AE_MASK_CAEP_AEQ_ALM_OVF_MASK_S 0 +#define ROCEE_CAEP_AE_MASK_CAEP_AE_IRQ_MASK_S 1 + +#define ROCEE_CAEP_AE_ST_CAEP_AEQ_ALM_OVF_S 0 + +#define ROCEE_SDB_ISSUE_PTR_SDB_ISSUE_PTR_S 0 +#define ROCEE_SDB_ISSUE_PTR_SDB_ISSUE_PTR_M \ + (((1UL << 28) - 1) << ROCEE_SDB_ISSUE_PTR_SDB_ISSUE_PTR_S) + +#define ROCEE_SDB_SEND_PTR_SDB_SEND_PTR_S 0 +#define ROCEE_SDB_SEND_PTR_SDB_SEND_PTR_M \ + (((1UL << 28) - 1) << ROCEE_SDB_SEND_PTR_SDB_SEND_PTR_S) + +#define ROCEE_SDB_INV_CNT_SDB_INV_CNT_S 0 +#define ROCEE_SDB_INV_CNT_SDB_INV_CNT_M \ + (((1UL << 16) - 1) << ROCEE_SDB_INV_CNT_SDB_INV_CNT_S) + +/*************ROCEE_REG DEFINITION****************/ +#define ROCEE_VENDOR_ID_REG 0x0 +#define ROCEE_VENDOR_PART_ID_REG 0x4 + +#define ROCEE_HW_VERSION_REG 0x8 + +#define ROCEE_SYS_IMAGE_GUID_L_REG 0xC +#define ROCEE_SYS_IMAGE_GUID_H_REG 0x10 + +#define ROCEE_PORT_GID_L_0_REG 0x50 +#define ROCEE_PORT_GID_ML_0_REG 0x54 +#define ROCEE_PORT_GID_MH_0_REG 0x58 +#define ROCEE_PORT_GID_H_0_REG 0x5C + +#define ROCEE_BT_CMD_H_REG 0x204 + +#define ROCEE_SMAC_L_0_REG 0x240 +#define ROCEE_SMAC_H_0_REG 0x244 + +#define ROCEE_QP1C_CFG3_0_REG 0x27C + +#define ROCEE_CAEP_AEQE_CONS_IDX_REG 0x3AC +#define ROCEE_CAEP_CEQC_CONS_IDX_0_REG 0x3BC + +#define ROCEE_ECC_UCERR_ALM1_REG 0xB38 +#define ROCEE_ECC_UCERR_ALM2_REG 0xB3C +#define ROCEE_ECC_CERR_ALM1_REG 0xB44 +#define ROCEE_ECC_CERR_ALM2_REG 0xB48 + +#define ROCEE_ACK_DELAY_REG 0x14 +#define ROCEE_GLB_CFG_REG 0x18 + +#define ROCEE_DMAE_USER_CFG1_REG 0x40 +#define ROCEE_DMAE_USER_CFG2_REG 0x44 + +#define ROCEE_DB_SQ_WL_REG 0x154 +#define ROCEE_DB_OTHERS_WL_REG 0x158 +#define ROCEE_RAQ_WL_REG 0x15C +#define ROCEE_WRMS_POL_TIME_INTERVAL_REG 0x160 +#define ROCEE_EXT_DB_SQ_REG 0x164 +#define ROCEE_EXT_DB_SQ_H_REG 0x168 +#define ROCEE_EXT_DB_OTH_REG 0x16C + +#define ROCEE_EXT_DB_OTH_H_REG 0x170 +#define ROCEE_EXT_DB_SQ_WL_EMPTY_REG 0x174 +#define ROCEE_EXT_DB_SQ_WL_REG 0x178 +#define ROCEE_EXT_DB_OTHERS_WL_EMPTY_REG 0x17C +#define ROCEE_EXT_DB_OTHERS_WL_REG 0x180 +#define ROCEE_EXT_RAQ_REG 0x184 +#define ROCEE_EXT_RAQ_H_REG 0x188 + +#define ROCEE_CAEP_CE_INTERVAL_CFG_REG 0x190 +#define ROCEE_CAEP_CE_BURST_NUM_CFG_REG 0x194 +#define ROCEE_BT_CMD_L_REG 0x200 + +#define ROCEE_MB1_REG 0x210 +#define ROCEE_DB_SQ_L_0_REG 0x230 +#define ROCEE_DB_OTHERS_L_0_REG 0x238 +#define ROCEE_QP1C_CFG0_0_REG 0x270 + +#define ROCEE_CAEP_AEQC_AEQE_SHIFT_REG 0x3A0 +#define ROCEE_CAEP_CEQC_SHIFT_0_REG 0x3B0 +#define ROCEE_CAEP_CE_IRQ_MASK_0_REG 0x3C0 +#define ROCEE_CAEP_CEQ_ALM_OVF_0_REG 0x3C4 +#define ROCEE_CAEP_AE_MASK_REG 0x6C8 +#define ROCEE_CAEP_AE_ST_REG 0x6CC + +#define ROCEE_SDB_ISSUE_PTR_REG 0x758 +#define ROCEE_SDB_SEND_PTR_REG 0x75C +#define ROCEE_SDB_INV_CNT_REG 0x9A4 +#define ROCEE_ECC_UCERR_ALM0_REG 0xB34 +#define ROCEE_ECC_CERR_ALM0_REG 0xB40 + +#endif /* _HNS_ROCE_COMMON_H */ diff --git a/drivers/infiniband/hw/hns/hns_roce_cq.c b/drivers/infiniband/hw/hns/hns_roce_cq.c new file mode 100644 index 000000000000..875597b0e69c --- /dev/null +++ b/drivers/infiniband/hw/hns/hns_roce_cq.c @@ -0,0 +1,446 @@ +/* + * Copyright (c) 2016 Hisilicon Limited. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/platform_device.h> +#include <rdma/ib_umem.h> +#include "hns_roce_device.h" +#include "hns_roce_cmd.h" +#include "hns_roce_hem.h" +#include "hns_roce_user.h" +#include "hns_roce_common.h" + +static void hns_roce_ib_cq_comp(struct hns_roce_cq *hr_cq) +{ + struct ib_cq *ibcq = &hr_cq->ib_cq; + + ibcq->comp_handler(ibcq, ibcq->cq_context); +} + +static void hns_roce_ib_cq_event(struct hns_roce_cq *hr_cq, + enum hns_roce_event event_type) +{ + struct hns_roce_dev *hr_dev; + struct ib_event event; + struct ib_cq *ibcq; + + ibcq = &hr_cq->ib_cq; + hr_dev = to_hr_dev(ibcq->device); + + if (event_type != HNS_ROCE_EVENT_TYPE_CQ_ID_INVALID && + event_type != HNS_ROCE_EVENT_TYPE_CQ_ACCESS_ERROR && + event_type != HNS_ROCE_EVENT_TYPE_CQ_OVERFLOW) { + dev_err(&hr_dev->pdev->dev, + "hns_roce_ib: Unexpected event type 0x%x on CQ %06lx\n", + event_type, hr_cq->cqn); + return; + } + + if (ibcq->event_handler) { + event.device = ibcq->device; + event.event = IB_EVENT_CQ_ERR; + event.element.cq = ibcq; + ibcq->event_handler(&event, ibcq->cq_context); + } +} + +static int hns_roce_sw2hw_cq(struct hns_roce_dev *dev, + struct hns_roce_cmd_mailbox *mailbox, + unsigned long cq_num) +{ + return hns_roce_cmd_mbox(dev, mailbox->dma, 0, cq_num, 0, + HNS_ROCE_CMD_SW2HW_CQ, HNS_ROCE_CMD_TIME_CLASS_A); +} + +static int hns_roce_cq_alloc(struct hns_roce_dev *hr_dev, int nent, + struct hns_roce_mtt *hr_mtt, + struct hns_roce_uar *hr_uar, + struct hns_roce_cq *hr_cq, int vector, + int collapsed) +{ + struct hns_roce_cmd_mailbox *mailbox = NULL; + struct hns_roce_cq_table *cq_table = NULL; + struct device *dev = &hr_dev->pdev->dev; + dma_addr_t dma_handle; + u64 *mtts = NULL; + int ret = 0; + + cq_table = &hr_dev->cq_table; + + /* Get the physical address of cq buf */ + mtts = hns_roce_table_find(&hr_dev->mr_table.mtt_table, + hr_mtt->first_seg, &dma_handle); + if (!mtts) { + dev_err(dev, "CQ alloc.Failed to find cq buf addr.\n"); + return -EINVAL; + } + + if (vector >= hr_dev->caps.num_comp_vectors) { + dev_err(dev, "CQ alloc.Invalid vector.\n"); + return -EINVAL; + } + hr_cq->vector = vector; + + ret = hns_roce_bitmap_alloc(&cq_table->bitmap, &hr_cq->cqn); + if (ret == -1) { + dev_err(dev, "CQ alloc.Failed to alloc index.\n"); + return -ENOMEM; + } + + /* Get CQC memory HEM(Hardware Entry Memory) table */ + ret = hns_roce_table_get(hr_dev, &cq_table->table, hr_cq->cqn); + if (ret) { + dev_err(dev, "CQ alloc.Failed to get context mem.\n"); + goto err_out; + } + + /* The cq insert radix tree */ + spin_lock_irq(&cq_table->lock); + /* Radix_tree: The associated pointer and long integer key value like */ + ret = radix_tree_insert(&cq_table->tree, hr_cq->cqn, hr_cq); + spin_unlock_irq(&cq_table->lock); + if (ret) { + dev_err(dev, "CQ alloc.Failed to radix_tree_insert.\n"); + goto err_put; + } + + /* Allocate mailbox memory */ + mailbox = hns_roce_alloc_cmd_mailbox(hr_dev); + if (IS_ERR(mailbox)) { + ret = PTR_ERR(mailbox); + goto err_radix; + } + + hr_dev->hw->write_cqc(hr_dev, hr_cq, mailbox->buf, mtts, dma_handle, + nent, vector); + + /* Send mailbox to hw */ + ret = hns_roce_sw2hw_cq(hr_dev, mailbox, hr_cq->cqn); + hns_roce_free_cmd_mailbox(hr_dev, mailbox); + if (ret) { + dev_err(dev, "CQ alloc.Failed to cmd mailbox.\n"); + goto err_radix; + } + + hr_cq->cons_index = 0; + hr_cq->uar = hr_uar; + + return 0; + +err_radix: + spin_lock_irq(&cq_table->lock); + radix_tree_delete(&cq_table->tree, hr_cq->cqn); + spin_unlock_irq(&cq_table->lock); + +err_put: + hns_roce_table_put(hr_dev, &cq_table->table, hr_cq->cqn); + +err_out: + hns_roce_bitmap_free(&cq_table->bitmap, hr_cq->cqn); + return ret; +} + +static int hns_roce_hw2sw_cq(struct hns_roce_dev *dev, + struct hns_roce_cmd_mailbox *mailbox, + unsigned long cq_num) +{ + return hns_roce_cmd_mbox(dev, 0, mailbox ? mailbox->dma : 0, cq_num, + mailbox ? 0 : 1, HNS_ROCE_CMD_HW2SW_CQ, + HNS_ROCE_CMD_TIME_CLASS_A); +} + +static void hns_roce_free_cq(struct hns_roce_dev *hr_dev, + struct hns_roce_cq *hr_cq) +{ + struct hns_roce_cq_table *cq_table = &hr_dev->cq_table; + struct device *dev = &hr_dev->pdev->dev; + int ret; + + ret = hns_roce_hw2sw_cq(hr_dev, NULL, hr_cq->cqn); + if (ret) + dev_err(dev, "HW2SW_CQ failed (%d) for CQN %06lx\n", ret, + hr_cq->cqn); + + /* Waiting interrupt process procedure carried out */ + synchronize_irq(hr_dev->eq_table.eq[hr_cq->vector].irq); + + spin_lock_irq(&cq_table->lock); + radix_tree_delete(&cq_table->tree, hr_cq->cqn); + spin_unlock_irq(&cq_table->lock); + + hns_roce_table_put(hr_dev, &cq_table->table, hr_cq->cqn); + hns_roce_bitmap_free(&cq_table->bitmap, hr_cq->cqn); +} + +static int hns_roce_ib_get_cq_umem(struct hns_roce_dev *hr_dev, + struct ib_ucontext *context, + struct hns_roce_cq_buf *buf, + struct ib_umem **umem, u64 buf_addr, int cqe) +{ + int ret; + + *umem = ib_umem_get(context, buf_addr, cqe * hr_dev->caps.cq_entry_sz, + IB_ACCESS_LOCAL_WRITE, 1); + if (IS_ERR(*umem)) + return PTR_ERR(*umem); + + ret = hns_roce_mtt_init(hr_dev, ib_umem_page_count(*umem), + ilog2((unsigned int)(*umem)->page_size), + &buf->hr_mtt); + if (ret) + goto err_buf; + + ret = hns_roce_ib_umem_write_mtt(hr_dev, &buf->hr_mtt, *umem); + if (ret) + goto err_mtt; + + return 0; + +err_mtt: + hns_roce_mtt_cleanup(hr_dev, &buf->hr_mtt); + +err_buf: + ib_umem_release(*umem); + return ret; +} + +static int hns_roce_ib_alloc_cq_buf(struct hns_roce_dev *hr_dev, + struct hns_roce_cq_buf *buf, u32 nent) +{ + int ret; + + ret = hns_roce_buf_alloc(hr_dev, nent * hr_dev->caps.cq_entry_sz, + PAGE_SIZE * 2, &buf->hr_buf); + if (ret) + goto out; + + ret = hns_roce_mtt_init(hr_dev, buf->hr_buf.npages, + buf->hr_buf.page_shift, &buf->hr_mtt); + if (ret) + goto err_buf; + + ret = hns_roce_buf_write_mtt(hr_dev, &buf->hr_mtt, &buf->hr_buf); + if (ret) + goto err_mtt; + + return 0; + +err_mtt: + hns_roce_mtt_cleanup(hr_dev, &buf->hr_mtt); + +err_buf: + hns_roce_buf_free(hr_dev, nent * hr_dev->caps.cq_entry_sz, + &buf->hr_buf); +out: + return ret; +} + +static void hns_roce_ib_free_cq_buf(struct hns_roce_dev *hr_dev, + struct hns_roce_cq_buf *buf, int cqe) +{ + hns_roce_buf_free(hr_dev, (cqe + 1) * hr_dev->caps.cq_entry_sz, + &buf->hr_buf); +} + +struct ib_cq *hns_roce_ib_create_cq(struct ib_device *ib_dev, + const struct ib_cq_init_attr *attr, + struct ib_ucontext *context, + struct ib_udata *udata) +{ + struct hns_roce_dev *hr_dev = to_hr_dev(ib_dev); + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_ib_create_cq ucmd; + struct hns_roce_cq *hr_cq = NULL; + struct hns_roce_uar *uar = NULL; + int vector = attr->comp_vector; + int cq_entries = attr->cqe; + int ret = 0; + + if (cq_entries < 1 || cq_entries > hr_dev->caps.max_cqes) { + dev_err(dev, "Creat CQ failed. entries=%d, max=%d\n", + cq_entries, hr_dev->caps.max_cqes); + return ERR_PTR(-EINVAL); + } + + hr_cq = kmalloc(sizeof(*hr_cq), GFP_KERNEL); + if (!hr_cq) + return ERR_PTR(-ENOMEM); + + /* In v1 engine, parameter verification */ + if (cq_entries < HNS_ROCE_MIN_CQE_NUM) + cq_entries = HNS_ROCE_MIN_CQE_NUM; + + cq_entries = roundup_pow_of_two((unsigned int)cq_entries); + hr_cq->ib_cq.cqe = cq_entries - 1; + mutex_init(&hr_cq->resize_mutex); + spin_lock_init(&hr_cq->lock); + hr_cq->hr_resize_buf = NULL; + hr_cq->resize_umem = NULL; + + if (context) { + if (ib_copy_from_udata(&ucmd, udata, sizeof(ucmd))) { + dev_err(dev, "Failed to copy_from_udata.\n"); + ret = -EFAULT; + goto err_cq; + } + + /* Get user space address, write it into mtt table */ + ret = hns_roce_ib_get_cq_umem(hr_dev, context, &hr_cq->hr_buf, + &hr_cq->umem, ucmd.buf_addr, + cq_entries); + if (ret) { + dev_err(dev, "Failed to get_cq_umem.\n"); + goto err_cq; + } + + /* Get user space parameters */ + uar = &to_hr_ucontext(context)->uar; + } else { + /* Init mmt table and write buff address to mtt table */ + ret = hns_roce_ib_alloc_cq_buf(hr_dev, &hr_cq->hr_buf, + cq_entries); + if (ret) { + dev_err(dev, "Failed to alloc_cq_buf.\n"); + goto err_cq; + } + + uar = &hr_dev->priv_uar; + hr_cq->cq_db_l = hr_dev->reg_base + ROCEE_DB_OTHERS_L_0_REG + + 0x1000 * uar->index; + } + + /* Allocate cq index, fill cq_context */ + ret = hns_roce_cq_alloc(hr_dev, cq_entries, &hr_cq->hr_buf.hr_mtt, + uar, hr_cq, vector, 0); + if (ret) { + dev_err(dev, "Creat CQ .Failed to cq_alloc.\n"); + goto err_mtt; + } + + /* Get created cq handler and carry out event */ + hr_cq->comp = hns_roce_ib_cq_comp; + hr_cq->event = hns_roce_ib_cq_event; + hr_cq->cq_depth = cq_entries; + + if (context) { + if (ib_copy_to_udata(udata, &hr_cq->cqn, sizeof(u64))) { + ret = -EFAULT; + goto err_mtt; + } + } + + return &hr_cq->ib_cq; + +err_mtt: + hns_roce_mtt_cleanup(hr_dev, &hr_cq->hr_buf.hr_mtt); + if (context) + ib_umem_release(hr_cq->umem); + else + hns_roce_ib_free_cq_buf(hr_dev, &hr_cq->hr_buf, + hr_cq->ib_cq.cqe); + +err_cq: + kfree(hr_cq); + return ERR_PTR(ret); +} + +int hns_roce_ib_destroy_cq(struct ib_cq *ib_cq) +{ + struct hns_roce_dev *hr_dev = to_hr_dev(ib_cq->device); + struct hns_roce_cq *hr_cq = to_hr_cq(ib_cq); + + hns_roce_free_cq(hr_dev, hr_cq); + hns_roce_mtt_cleanup(hr_dev, &hr_cq->hr_buf.hr_mtt); + + if (ib_cq->uobject) + ib_umem_release(hr_cq->umem); + else + /* Free the buff of stored cq */ + hns_roce_ib_free_cq_buf(hr_dev, &hr_cq->hr_buf, ib_cq->cqe); + + kfree(hr_cq); + + return 0; +} + +void hns_roce_cq_completion(struct hns_roce_dev *hr_dev, u32 cqn) +{ + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_cq *cq; + + cq = radix_tree_lookup(&hr_dev->cq_table.tree, + cqn & (hr_dev->caps.num_cqs - 1)); + if (!cq) { + dev_warn(dev, "Completion event for bogus CQ 0x%08x\n", cqn); + return; + } + + cq->comp(cq); +} + +void hns_roce_cq_event(struct hns_roce_dev *hr_dev, u32 cqn, int event_type) +{ + struct hns_roce_cq_table *cq_table = &hr_dev->cq_table; + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_cq *cq; + + cq = radix_tree_lookup(&cq_table->tree, + cqn & (hr_dev->caps.num_cqs - 1)); + if (cq) + atomic_inc(&cq->refcount); + + if (!cq) { + dev_warn(dev, "Async event for bogus CQ %08x\n", cqn); + return; + } + + cq->event(cq, (enum hns_roce_event)event_type); + + if (atomic_dec_and_test(&cq->refcount)) + complete(&cq->free); +} + +int hns_roce_init_cq_table(struct hns_roce_dev *hr_dev) +{ + struct hns_roce_cq_table *cq_table = &hr_dev->cq_table; + + spin_lock_init(&cq_table->lock); + INIT_RADIX_TREE(&cq_table->tree, GFP_ATOMIC); + + return hns_roce_bitmap_init(&cq_table->bitmap, hr_dev->caps.num_cqs, + hr_dev->caps.num_cqs - 1, + hr_dev->caps.reserved_cqs, 0); +} + +void hns_roce_cleanup_cq_table(struct hns_roce_dev *hr_dev) +{ + hns_roce_bitmap_cleanup(&hr_dev->cq_table.bitmap); +} diff --git a/drivers/infiniband/hw/hns/hns_roce_device.h b/drivers/infiniband/hw/hns/hns_roce_device.h new file mode 100644 index 000000000000..00f01be1ffa5 --- /dev/null +++ b/drivers/infiniband/hw/hns/hns_roce_device.h @@ -0,0 +1,734 @@ +/* + * Copyright (c) 2016 Hisilicon Limited. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef _HNS_ROCE_DEVICE_H +#define _HNS_ROCE_DEVICE_H + +#include <rdma/ib_verbs.h> + +#define DRV_NAME "hns_roce" + +#define MAC_ADDR_OCTET_NUM 6 +#define HNS_ROCE_MAX_MSG_LEN 0x80000000 + +#define HNS_ROCE_ALOGN_UP(a, b) ((((a) + (b) - 1) / (b)) * (b)) + +#define HNS_ROCE_IB_MIN_SQ_STRIDE 6 + +#define HNS_ROCE_BA_SIZE (32 * 4096) + +/* Hardware specification only for v1 engine */ +#define HNS_ROCE_MIN_CQE_NUM 0x40 +#define HNS_ROCE_MIN_WQE_NUM 0x20 + +/* Hardware specification only for v1 engine */ +#define HNS_ROCE_MAX_INNER_MTPT_NUM 0x7 +#define HNS_ROCE_MAX_MTPT_PBL_NUM 0x100000 + +#define HNS_ROCE_MAX_IRQ_NUM 34 + +#define HNS_ROCE_COMP_VEC_NUM 32 + +#define HNS_ROCE_AEQE_VEC_NUM 1 +#define HNS_ROCE_AEQE_OF_VEC_NUM 1 + +/* 4G/4K = 1M */ +#define HNS_ROCE_SL_SHIFT 29 +#define HNS_ROCE_TCLASS_SHIFT 20 +#define HNS_ROCE_FLOW_LABLE_MASK 0xfffff + +#define HNS_ROCE_MAX_PORTS 6 +#define HNS_ROCE_MAX_GID_NUM 16 +#define HNS_ROCE_GID_SIZE 16 + +#define MR_TYPE_MR 0x00 +#define MR_TYPE_DMA 0x03 + +#define PKEY_ID 0xffff +#define NODE_DESC_SIZE 64 + +#define SERV_TYPE_RC 0 +#define SERV_TYPE_RD 1 +#define SERV_TYPE_UC 2 +#define SERV_TYPE_UD 3 + +#define PAGES_SHIFT_8 8 +#define PAGES_SHIFT_16 16 +#define PAGES_SHIFT_24 24 +#define PAGES_SHIFT_32 32 + +enum hns_roce_qp_state { + HNS_ROCE_QP_STATE_RST, + HNS_ROCE_QP_STATE_INIT, + HNS_ROCE_QP_STATE_RTR, + HNS_ROCE_QP_STATE_RTS, + HNS_ROCE_QP_STATE_SQD, + HNS_ROCE_QP_STATE_ERR, + HNS_ROCE_QP_NUM_STATE, +}; + +enum hns_roce_event { + HNS_ROCE_EVENT_TYPE_PATH_MIG = 0x01, + HNS_ROCE_EVENT_TYPE_PATH_MIG_FAILED = 0x02, + HNS_ROCE_EVENT_TYPE_COMM_EST = 0x03, + HNS_ROCE_EVENT_TYPE_SQ_DRAINED = 0x04, + HNS_ROCE_EVENT_TYPE_WQ_CATAS_ERROR = 0x05, + HNS_ROCE_EVENT_TYPE_INV_REQ_LOCAL_WQ_ERROR = 0x06, + HNS_ROCE_EVENT_TYPE_LOCAL_WQ_ACCESS_ERROR = 0x07, + HNS_ROCE_EVENT_TYPE_SRQ_LIMIT_REACH = 0x08, + HNS_ROCE_EVENT_TYPE_SRQ_LAST_WQE_REACH = 0x09, + HNS_ROCE_EVENT_TYPE_SRQ_CATAS_ERROR = 0x0a, + HNS_ROCE_EVENT_TYPE_CQ_ACCESS_ERROR = 0x0b, + HNS_ROCE_EVENT_TYPE_CQ_OVERFLOW = 0x0c, + HNS_ROCE_EVENT_TYPE_CQ_ID_INVALID = 0x0d, + HNS_ROCE_EVENT_TYPE_PORT_CHANGE = 0x0f, + /* 0x10 and 0x11 is unused in currently application case */ + HNS_ROCE_EVENT_TYPE_DB_OVERFLOW = 0x12, + HNS_ROCE_EVENT_TYPE_MB = 0x13, + HNS_ROCE_EVENT_TYPE_CEQ_OVERFLOW = 0x14, +}; + +/* Local Work Queue Catastrophic Error,SUBTYPE 0x5 */ +enum { + HNS_ROCE_LWQCE_QPC_ERROR = 1, + HNS_ROCE_LWQCE_MTU_ERROR = 2, + HNS_ROCE_LWQCE_WQE_BA_ADDR_ERROR = 3, + HNS_ROCE_LWQCE_WQE_ADDR_ERROR = 4, + HNS_ROCE_LWQCE_SQ_WQE_SHIFT_ERROR = 5, + HNS_ROCE_LWQCE_SL_ERROR = 6, + HNS_ROCE_LWQCE_PORT_ERROR = 7, +}; + +/* Local Access Violation Work Queue Error,SUBTYPE 0x7 */ +enum { + HNS_ROCE_LAVWQE_R_KEY_VIOLATION = 1, + HNS_ROCE_LAVWQE_LENGTH_ERROR = 2, + HNS_ROCE_LAVWQE_VA_ERROR = 3, + HNS_ROCE_LAVWQE_PD_ERROR = 4, + HNS_ROCE_LAVWQE_RW_ACC_ERROR = 5, + HNS_ROCE_LAVWQE_KEY_STATE_ERROR = 6, + HNS_ROCE_LAVWQE_MR_OPERATION_ERROR = 7, +}; + +/* DOORBELL overflow subtype */ +enum { + HNS_ROCE_DB_SUBTYPE_SDB_OVF = 1, + HNS_ROCE_DB_SUBTYPE_SDB_ALM_OVF = 2, + HNS_ROCE_DB_SUBTYPE_ODB_OVF = 3, + HNS_ROCE_DB_SUBTYPE_ODB_ALM_OVF = 4, + HNS_ROCE_DB_SUBTYPE_SDB_ALM_EMP = 5, + HNS_ROCE_DB_SUBTYPE_ODB_ALM_EMP = 6, +}; + +enum { + /* RQ&SRQ related operations */ + HNS_ROCE_OPCODE_SEND_DATA_RECEIVE = 0x06, + HNS_ROCE_OPCODE_RDMA_WITH_IMM_RECEIVE = 0x07, +}; + +#define HNS_ROCE_CMD_SUCCESS 1 + +#define HNS_ROCE_PORT_DOWN 0 +#define HNS_ROCE_PORT_UP 1 + +#define HNS_ROCE_MTT_ENTRY_PER_SEG 8 + +#define PAGE_ADDR_SHIFT 12 + +struct hns_roce_uar { + u64 pfn; + unsigned long index; +}; + +struct hns_roce_ucontext { + struct ib_ucontext ibucontext; + struct hns_roce_uar uar; +}; + +struct hns_roce_pd { + struct ib_pd ibpd; + unsigned long pdn; +}; + +struct hns_roce_bitmap { + /* Bitmap Traversal last a bit which is 1 */ + unsigned long last; + unsigned long top; + unsigned long max; + unsigned long reserved_top; + unsigned long mask; + spinlock_t lock; + unsigned long *table; +}; + +/* Order bitmap length -- bit num compute formula: 1 << (max_order - order) */ +/* Order = 0: bitmap is biggest, order = max bitmap is least (only a bit) */ +/* Every bit repesent to a partner free/used status in bitmap */ +/* +* Initial, bits of other bitmap are all 0 except that a bit of max_order is 1 +* Bit = 1 represent to idle and available; bit = 0: not available +*/ +struct hns_roce_buddy { + /* Members point to every order level bitmap */ + unsigned long **bits; + /* Represent to avail bits of the order level bitmap */ + u32 *num_free; + int max_order; + spinlock_t lock; +}; + +/* For Hardware Entry Memory */ +struct hns_roce_hem_table { + /* HEM type: 0 = qpc, 1 = mtt, 2 = cqc, 3 = srq, 4 = other */ + u32 type; + /* HEM array elment num */ + unsigned long num_hem; + /* HEM entry record obj total num */ + unsigned long num_obj; + /*Single obj size */ + unsigned long obj_size; + int lowmem; + struct mutex mutex; + struct hns_roce_hem **hem; +}; + +struct hns_roce_mtt { + unsigned long first_seg; + int order; + int page_shift; +}; + +/* Only support 4K page size for mr register */ +#define MR_SIZE_4K 0 + +struct hns_roce_mr { + struct ib_mr ibmr; + struct ib_umem *umem; + u64 iova; /* MR's virtual orignal addr */ + u64 size; /* Address range of MR */ + u32 key; /* Key of MR */ + u32 pd; /* PD num of MR */ + u32 access;/* Access permission of MR */ + int enabled; /* MR's active status */ + int type; /* MR's register type */ + u64 *pbl_buf;/* MR's PBL space */ + dma_addr_t pbl_dma_addr; /* MR's PBL space PA */ +}; + +struct hns_roce_mr_table { + struct hns_roce_bitmap mtpt_bitmap; + struct hns_roce_buddy mtt_buddy; + struct hns_roce_hem_table mtt_table; + struct hns_roce_hem_table mtpt_table; +}; + +struct hns_roce_wq { + u64 *wrid; /* Work request ID */ + spinlock_t lock; + int wqe_cnt; /* WQE num */ + u32 max_post; + int max_gs; + int offset; + int wqe_shift;/* WQE size */ + u32 head; + u32 tail; + void __iomem *db_reg_l; +}; + +struct hns_roce_buf_list { + void *buf; + dma_addr_t map; +}; + +struct hns_roce_buf { + struct hns_roce_buf_list direct; + struct hns_roce_buf_list *page_list; + int nbufs; + u32 npages; + int page_shift; +}; + +struct hns_roce_cq_buf { + struct hns_roce_buf hr_buf; + struct hns_roce_mtt hr_mtt; +}; + +struct hns_roce_cq_resize { + struct hns_roce_cq_buf hr_buf; + int cqe; +}; + +struct hns_roce_cq { + struct ib_cq ib_cq; + struct hns_roce_cq_buf hr_buf; + /* pointer to store information after resize*/ + struct hns_roce_cq_resize *hr_resize_buf; + spinlock_t lock; + struct mutex resize_mutex; + struct ib_umem *umem; + struct ib_umem *resize_umem; + void (*comp)(struct hns_roce_cq *); + void (*event)(struct hns_roce_cq *, enum hns_roce_event); + + struct hns_roce_uar *uar; + u32 cq_depth; + u32 cons_index; + void __iomem *cq_db_l; + void __iomem *tptr_addr; + unsigned long cqn; + u32 vector; + atomic_t refcount; + struct completion free; +}; + +struct hns_roce_srq { + struct ib_srq ibsrq; + int srqn; +}; + +struct hns_roce_uar_table { + struct hns_roce_bitmap bitmap; +}; + +struct hns_roce_qp_table { + struct hns_roce_bitmap bitmap; + spinlock_t lock; + struct hns_roce_hem_table qp_table; + struct hns_roce_hem_table irrl_table; +}; + +struct hns_roce_cq_table { + struct hns_roce_bitmap bitmap; + spinlock_t lock; + struct radix_tree_root tree; + struct hns_roce_hem_table table; +}; + +struct hns_roce_raq_table { + struct hns_roce_buf_list *e_raq_buf; +}; + +struct hns_roce_av { + __le32 port_pd; + u8 gid_index; + u8 stat_rate; + u8 hop_limit; + __le32 sl_tclass_flowlabel; + u8 dgid[HNS_ROCE_GID_SIZE]; + u8 mac[6]; + __le16 vlan; +}; + +struct hns_roce_ah { + struct ib_ah ibah; + struct hns_roce_av av; +}; + +struct hns_roce_cmd_context { + struct completion done; + int result; + int next; + u64 out_param; + u16 token; +}; + +struct hns_roce_cmdq { + struct dma_pool *pool; + u8 __iomem *hcr; + struct mutex hcr_mutex; + struct semaphore poll_sem; + /* + * Event mode: cmd register mutex protection, + * ensure to not exceed max_cmds and user use limit region + */ + struct semaphore event_sem; + int max_cmds; + spinlock_t context_lock; + int free_head; + struct hns_roce_cmd_context *context; + /* + * Result of get integer part + * which max_comds compute according a power of 2 + */ + u16 token_mask; + /* + * Process whether use event mode, init default non-zero + * After the event queue of cmd event ready, + * can switch into event mode + * close device, switch into poll mode(non event mode) + */ + u8 use_events; + u8 toggle; +}; + +struct hns_roce_dev; + +struct hns_roce_qp { + struct ib_qp ibqp; + struct hns_roce_buf hr_buf; + struct hns_roce_wq rq; + __le64 doorbell_qpn; + __le32 sq_signal_bits; + u32 sq_next_wqe; + int sq_max_wqes_per_wr; + int sq_spare_wqes; + struct hns_roce_wq sq; + + struct ib_umem *umem; + struct hns_roce_mtt mtt; + u32 buff_size; + struct mutex mutex; + u8 port; + u8 sl; + u8 resp_depth; + u8 state; + u32 access_flags; + u32 pkey_index; + void (*event)(struct hns_roce_qp *, + enum hns_roce_event); + unsigned long qpn; + + atomic_t refcount; + struct completion free; +}; + +struct hns_roce_sqp { + struct hns_roce_qp hr_qp; +}; + +struct hns_roce_ib_iboe { + spinlock_t lock; + struct net_device *netdevs[HNS_ROCE_MAX_PORTS]; + struct notifier_block nb; + struct notifier_block nb_inet; + /* 16 GID is shared by 6 port in v1 engine. */ + union ib_gid gid_table[HNS_ROCE_MAX_GID_NUM]; + u8 phy_port[HNS_ROCE_MAX_PORTS]; +}; + +struct hns_roce_eq { + struct hns_roce_dev *hr_dev; + void __iomem *doorbell; + + int type_flag;/* Aeq:1 ceq:0 */ + int eqn; + u32 entries; + int log_entries; + int eqe_size; + int irq; + int log_page_size; + int cons_index; + struct hns_roce_buf_list *buf_list; +}; + +struct hns_roce_eq_table { + struct hns_roce_eq *eq; + void __iomem **eqc_base; +}; + +struct hns_roce_caps { + u8 num_ports; + int gid_table_len[HNS_ROCE_MAX_PORTS]; + int pkey_table_len[HNS_ROCE_MAX_PORTS]; + int local_ca_ack_delay; + int num_uars; + u32 phy_num_uars; + u32 max_sq_sg; /* 2 */ + u32 max_sq_inline; /* 32 */ + u32 max_rq_sg; /* 2 */ + int num_qps; /* 256k */ + u32 max_wqes; /* 16k */ + u32 max_sq_desc_sz; /* 64 */ + u32 max_rq_desc_sz; /* 64 */ + int max_qp_init_rdma; + int max_qp_dest_rdma; + int sqp_start; + int num_cqs; + int max_cqes; + int reserved_cqs; + int num_aeq_vectors; /* 1 */ + int num_comp_vectors; /* 32 ceq */ + int num_other_vectors; + int num_mtpts; + u32 num_mtt_segs; + int reserved_mrws; + int reserved_uars; + int num_pds; + int reserved_pds; + u32 mtt_entry_sz; + u32 cq_entry_sz; + u32 page_size_cap; + u32 reserved_lkey; + int mtpt_entry_sz; + int qpc_entry_sz; + int irrl_entry_sz; + int cqc_entry_sz; + int aeqe_depth; + int ceqe_depth[HNS_ROCE_COMP_VEC_NUM]; + enum ib_mtu max_mtu; +}; + +struct hns_roce_hw { + int (*reset)(struct hns_roce_dev *hr_dev, bool enable); + void (*hw_profile)(struct hns_roce_dev *hr_dev); + int (*hw_init)(struct hns_roce_dev *hr_dev); + void (*hw_exit)(struct hns_roce_dev *hr_dev); + void (*set_gid)(struct hns_roce_dev *hr_dev, u8 port, int gid_index, + union ib_gid *gid); + void (*set_mac)(struct hns_roce_dev *hr_dev, u8 phy_port, u8 *addr); + void (*set_mtu)(struct hns_roce_dev *hr_dev, u8 phy_port, + enum ib_mtu mtu); + int (*write_mtpt)(void *mb_buf, struct hns_roce_mr *mr, + unsigned long mtpt_idx); + void (*write_cqc)(struct hns_roce_dev *hr_dev, + struct hns_roce_cq *hr_cq, void *mb_buf, u64 *mtts, + dma_addr_t dma_handle, int nent, u32 vector); + int (*query_qp)(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, + int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr); + int (*modify_qp)(struct ib_qp *ibqp, const struct ib_qp_attr *attr, + int attr_mask, enum ib_qp_state cur_state, + enum ib_qp_state new_state); + int (*destroy_qp)(struct ib_qp *ibqp); + int (*post_send)(struct ib_qp *ibqp, struct ib_send_wr *wr, + struct ib_send_wr **bad_wr); + int (*post_recv)(struct ib_qp *qp, struct ib_recv_wr *recv_wr, + struct ib_recv_wr **bad_recv_wr); + int (*req_notify_cq)(struct ib_cq *ibcq, enum ib_cq_notify_flags flags); + int (*poll_cq)(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc); + void *priv; +}; + +struct hns_roce_dev { + struct ib_device ib_dev; + struct platform_device *pdev; + struct hns_roce_uar priv_uar; + const char *irq_names; + spinlock_t sm_lock; + spinlock_t cq_db_lock; + spinlock_t bt_cmd_lock; + struct hns_roce_ib_iboe iboe; + + int irq[HNS_ROCE_MAX_IRQ_NUM]; + u8 __iomem *reg_base; + struct hns_roce_caps caps; + struct radix_tree_root qp_table_tree; + + unsigned char dev_addr[HNS_ROCE_MAX_PORTS][MAC_ADDR_OCTET_NUM]; + u64 sys_image_guid; + u32 vendor_id; + u32 vendor_part_id; + u32 hw_rev; + void __iomem *priv_addr; + + struct hns_roce_cmdq cmd; + struct hns_roce_bitmap pd_bitmap; + struct hns_roce_uar_table uar_table; + struct hns_roce_mr_table mr_table; + struct hns_roce_cq_table cq_table; + struct hns_roce_qp_table qp_table; + struct hns_roce_eq_table eq_table; + + int cmd_mod; + int loop_idc; + struct hns_roce_hw *hw; +}; + +static inline struct hns_roce_dev *to_hr_dev(struct ib_device *ib_dev) +{ + return container_of(ib_dev, struct hns_roce_dev, ib_dev); +} + +static inline struct hns_roce_ucontext + *to_hr_ucontext(struct ib_ucontext *ibucontext) +{ + return container_of(ibucontext, struct hns_roce_ucontext, ibucontext); +} + +static inline struct hns_roce_pd *to_hr_pd(struct ib_pd *ibpd) +{ + return container_of(ibpd, struct hns_roce_pd, ibpd); +} + +static inline struct hns_roce_ah *to_hr_ah(struct ib_ah *ibah) +{ + return container_of(ibah, struct hns_roce_ah, ibah); +} + +static inline struct hns_roce_mr *to_hr_mr(struct ib_mr *ibmr) +{ + return container_of(ibmr, struct hns_roce_mr, ibmr); +} + +static inline struct hns_roce_qp *to_hr_qp(struct ib_qp *ibqp) +{ + return container_of(ibqp, struct hns_roce_qp, ibqp); +} + +static inline struct hns_roce_cq *to_hr_cq(struct ib_cq *ib_cq) +{ + return container_of(ib_cq, struct hns_roce_cq, ib_cq); +} + +static inline struct hns_roce_srq *to_hr_srq(struct ib_srq *ibsrq) +{ + return container_of(ibsrq, struct hns_roce_srq, ibsrq); +} + +static inline struct hns_roce_sqp *hr_to_hr_sqp(struct hns_roce_qp *hr_qp) +{ + return container_of(hr_qp, struct hns_roce_sqp, hr_qp); +} + +static inline void hns_roce_write64_k(__be32 val[2], void __iomem *dest) +{ + __raw_writeq(*(u64 *) val, dest); +} + +static inline struct hns_roce_qp + *__hns_roce_qp_lookup(struct hns_roce_dev *hr_dev, u32 qpn) +{ + return radix_tree_lookup(&hr_dev->qp_table_tree, + qpn & (hr_dev->caps.num_qps - 1)); +} + +static inline void *hns_roce_buf_offset(struct hns_roce_buf *buf, int offset) +{ + u32 bits_per_long_val = BITS_PER_LONG; + + if (bits_per_long_val == 64 || buf->nbufs == 1) + return (char *)(buf->direct.buf) + offset; + else + return (char *)(buf->page_list[offset >> PAGE_SHIFT].buf) + + (offset & (PAGE_SIZE - 1)); +} + +int hns_roce_init_uar_table(struct hns_roce_dev *dev); +int hns_roce_uar_alloc(struct hns_roce_dev *dev, struct hns_roce_uar *uar); +void hns_roce_uar_free(struct hns_roce_dev *dev, struct hns_roce_uar *uar); +void hns_roce_cleanup_uar_table(struct hns_roce_dev *dev); + +int hns_roce_cmd_init(struct hns_roce_dev *hr_dev); +void hns_roce_cmd_cleanup(struct hns_roce_dev *hr_dev); +void hns_roce_cmd_event(struct hns_roce_dev *hr_dev, u16 token, u8 status, + u64 out_param); +int hns_roce_cmd_use_events(struct hns_roce_dev *hr_dev); +void hns_roce_cmd_use_polling(struct hns_roce_dev *hr_dev); + +int hns_roce_mtt_init(struct hns_roce_dev *hr_dev, int npages, int page_shift, + struct hns_roce_mtt *mtt); +void hns_roce_mtt_cleanup(struct hns_roce_dev *hr_dev, + struct hns_roce_mtt *mtt); +int hns_roce_buf_write_mtt(struct hns_roce_dev *hr_dev, + struct hns_roce_mtt *mtt, struct hns_roce_buf *buf); + +int hns_roce_init_pd_table(struct hns_roce_dev *hr_dev); +int hns_roce_init_mr_table(struct hns_roce_dev *hr_dev); +int hns_roce_init_eq_table(struct hns_roce_dev *hr_dev); +int hns_roce_init_cq_table(struct hns_roce_dev *hr_dev); +int hns_roce_init_qp_table(struct hns_roce_dev *hr_dev); + +void hns_roce_cleanup_pd_table(struct hns_roce_dev *hr_dev); +void hns_roce_cleanup_mr_table(struct hns_roce_dev *hr_dev); +void hns_roce_cleanup_eq_table(struct hns_roce_dev *hr_dev); +void hns_roce_cleanup_cq_table(struct hns_roce_dev *hr_dev); +void hns_roce_cleanup_qp_table(struct hns_roce_dev *hr_dev); + +int hns_roce_bitmap_alloc(struct hns_roce_bitmap *bitmap, unsigned long *obj); +void hns_roce_bitmap_free(struct hns_roce_bitmap *bitmap, unsigned long obj); +int hns_roce_bitmap_init(struct hns_roce_bitmap *bitmap, u32 num, u32 mask, + u32 reserved_bot, u32 resetrved_top); +void hns_roce_bitmap_cleanup(struct hns_roce_bitmap *bitmap); +void hns_roce_cleanup_bitmap(struct hns_roce_dev *hr_dev); +int hns_roce_bitmap_alloc_range(struct hns_roce_bitmap *bitmap, int cnt, + int align, unsigned long *obj); +void hns_roce_bitmap_free_range(struct hns_roce_bitmap *bitmap, + unsigned long obj, int cnt); + +struct ib_ah *hns_roce_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr); +int hns_roce_query_ah(struct ib_ah *ibah, struct ib_ah_attr *ah_attr); +int hns_roce_destroy_ah(struct ib_ah *ah); + +struct ib_pd *hns_roce_alloc_pd(struct ib_device *ib_dev, + struct ib_ucontext *context, + struct ib_udata *udata); +int hns_roce_dealloc_pd(struct ib_pd *pd); + +struct ib_mr *hns_roce_get_dma_mr(struct ib_pd *pd, int acc); +struct ib_mr *hns_roce_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, + u64 virt_addr, int access_flags, + struct ib_udata *udata); +int hns_roce_dereg_mr(struct ib_mr *ibmr); + +void hns_roce_buf_free(struct hns_roce_dev *hr_dev, u32 size, + struct hns_roce_buf *buf); +int hns_roce_buf_alloc(struct hns_roce_dev *hr_dev, u32 size, u32 max_direct, + struct hns_roce_buf *buf); + +int hns_roce_ib_umem_write_mtt(struct hns_roce_dev *hr_dev, + struct hns_roce_mtt *mtt, struct ib_umem *umem); + +struct ib_qp *hns_roce_create_qp(struct ib_pd *ib_pd, + struct ib_qp_init_attr *init_attr, + struct ib_udata *udata); +int hns_roce_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, + int attr_mask, struct ib_udata *udata); +void *get_recv_wqe(struct hns_roce_qp *hr_qp, int n); +void *get_send_wqe(struct hns_roce_qp *hr_qp, int n); +bool hns_roce_wq_overflow(struct hns_roce_wq *hr_wq, int nreq, + struct ib_cq *ib_cq); +enum hns_roce_qp_state to_hns_roce_state(enum ib_qp_state state); +void hns_roce_lock_cqs(struct hns_roce_cq *send_cq, + struct hns_roce_cq *recv_cq); +void hns_roce_unlock_cqs(struct hns_roce_cq *send_cq, + struct hns_roce_cq *recv_cq); +void hns_roce_qp_remove(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp); +void hns_roce_qp_free(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp); +void hns_roce_release_range_qp(struct hns_roce_dev *hr_dev, int base_qpn, + int cnt); +__be32 send_ieth(struct ib_send_wr *wr); +int to_hr_qp_type(int qp_type); + +struct ib_cq *hns_roce_ib_create_cq(struct ib_device *ib_dev, + const struct ib_cq_init_attr *attr, + struct ib_ucontext *context, + struct ib_udata *udata); + +int hns_roce_ib_destroy_cq(struct ib_cq *ib_cq); + +void hns_roce_cq_completion(struct hns_roce_dev *hr_dev, u32 cqn); +void hns_roce_cq_event(struct hns_roce_dev *hr_dev, u32 cqn, int event_type); +void hns_roce_qp_event(struct hns_roce_dev *hr_dev, u32 qpn, int event_type); +int hns_get_gid_index(struct hns_roce_dev *hr_dev, u8 port, int gid_index); + +extern struct hns_roce_hw hns_roce_hw_v1; + +#endif /* _HNS_ROCE_DEVICE_H */ diff --git a/drivers/infiniband/hw/hns/hns_roce_eq.c b/drivers/infiniband/hw/hns/hns_roce_eq.c new file mode 100644 index 000000000000..5febbb4b68e7 --- /dev/null +++ b/drivers/infiniband/hw/hns/hns_roce_eq.c @@ -0,0 +1,762 @@ +/* + * Copyright (c) 2016 Hisilicon Limited. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/platform_device.h> +#include "hns_roce_common.h" +#include "hns_roce_device.h" +#include "hns_roce_eq.h" + +static void eq_set_cons_index(struct hns_roce_eq *eq, int req_not) +{ + roce_raw_write((eq->cons_index & CONS_INDEX_MASK) | + (req_not << eq->log_entries), eq->doorbell); + /* Memory barrier */ + mb(); +} + +static struct hns_roce_aeqe *get_aeqe(struct hns_roce_eq *eq, u32 entry) +{ + unsigned long off = (entry & (eq->entries - 1)) * + HNS_ROCE_AEQ_ENTRY_SIZE; + + return (struct hns_roce_aeqe *)((u8 *) + (eq->buf_list[off / HNS_ROCE_BA_SIZE].buf) + + off % HNS_ROCE_BA_SIZE); +} + +static struct hns_roce_aeqe *next_aeqe_sw(struct hns_roce_eq *eq) +{ + struct hns_roce_aeqe *aeqe = get_aeqe(eq, eq->cons_index); + + return (roce_get_bit(aeqe->asyn, HNS_ROCE_AEQE_U32_4_OWNER_S) ^ + !!(eq->cons_index & eq->entries)) ? aeqe : NULL; +} + +static void hns_roce_wq_catas_err_handle(struct hns_roce_dev *hr_dev, + struct hns_roce_aeqe *aeqe, int qpn) +{ + struct device *dev = &hr_dev->pdev->dev; + + qpn = roce_get_field(aeqe->event.qp_event.qp, + HNS_ROCE_AEQE_EVENT_QP_EVENT_QP_QPN_M, + HNS_ROCE_AEQE_EVENT_QP_EVENT_QP_QPN_S); + dev_warn(dev, "Local Work Queue Catastrophic Error.\n"); + switch (roce_get_field(aeqe->asyn, HNS_ROCE_AEQE_U32_4_EVENT_SUB_TYPE_M, + HNS_ROCE_AEQE_U32_4_EVENT_SUB_TYPE_S)) { + case HNS_ROCE_LWQCE_QPC_ERROR: + dev_warn(dev, "QP %d, QPC error.\n", qpn); + break; + case HNS_ROCE_LWQCE_MTU_ERROR: + dev_warn(dev, "QP %d, MTU error.\n", qpn); + break; + case HNS_ROCE_LWQCE_WQE_BA_ADDR_ERROR: + dev_warn(dev, "QP %d, WQE BA addr error.\n", qpn); + break; + case HNS_ROCE_LWQCE_WQE_ADDR_ERROR: + dev_warn(dev, "QP %d, WQE addr error.\n", qpn); + break; + case HNS_ROCE_LWQCE_SQ_WQE_SHIFT_ERROR: + dev_warn(dev, "QP %d, WQE shift error\n", qpn); + break; + case HNS_ROCE_LWQCE_SL_ERROR: + dev_warn(dev, "QP %d, SL error.\n", qpn); + break; + case HNS_ROCE_LWQCE_PORT_ERROR: + dev_warn(dev, "QP %d, port error.\n", qpn); + break; + default: + break; + } + + hns_roce_qp_event(hr_dev, roce_get_field(aeqe->event.qp_event.qp, + HNS_ROCE_AEQE_EVENT_QP_EVENT_QP_QPN_M, + HNS_ROCE_AEQE_EVENT_QP_EVENT_QP_QPN_S), + roce_get_field(aeqe->asyn, + HNS_ROCE_AEQE_U32_4_EVENT_TYPE_M, + HNS_ROCE_AEQE_U32_4_EVENT_TYPE_S)); +} + +static void hns_roce_local_wq_access_err_handle(struct hns_roce_dev *hr_dev, + struct hns_roce_aeqe *aeqe, + int qpn) +{ + struct device *dev = &hr_dev->pdev->dev; + + qpn = roce_get_field(aeqe->event.qp_event.qp, + HNS_ROCE_AEQE_EVENT_QP_EVENT_QP_QPN_M, + HNS_ROCE_AEQE_EVENT_QP_EVENT_QP_QPN_S); + dev_warn(dev, "Local Access Violation Work Queue Error.\n"); + switch (roce_get_field(aeqe->asyn, HNS_ROCE_AEQE_U32_4_EVENT_SUB_TYPE_M, + HNS_ROCE_AEQE_U32_4_EVENT_SUB_TYPE_S)) { + case HNS_ROCE_LAVWQE_R_KEY_VIOLATION: + dev_warn(dev, "QP %d, R_key violation.\n", qpn); + break; + case HNS_ROCE_LAVWQE_LENGTH_ERROR: + dev_warn(dev, "QP %d, length error.\n", qpn); + break; + case HNS_ROCE_LAVWQE_VA_ERROR: + dev_warn(dev, "QP %d, VA error.\n", qpn); + break; + case HNS_ROCE_LAVWQE_PD_ERROR: + dev_err(dev, "QP %d, PD error.\n", qpn); + break; + case HNS_ROCE_LAVWQE_RW_ACC_ERROR: + dev_warn(dev, "QP %d, rw acc error.\n", qpn); + break; + case HNS_ROCE_LAVWQE_KEY_STATE_ERROR: + dev_warn(dev, "QP %d, key state error.\n", qpn); + break; + case HNS_ROCE_LAVWQE_MR_OPERATION_ERROR: + dev_warn(dev, "QP %d, MR operation error.\n", qpn); + break; + default: + break; + } + + hns_roce_qp_event(hr_dev, roce_get_field(aeqe->event.qp_event.qp, + HNS_ROCE_AEQE_EVENT_QP_EVENT_QP_QPN_M, + HNS_ROCE_AEQE_EVENT_QP_EVENT_QP_QPN_S), + roce_get_field(aeqe->asyn, + HNS_ROCE_AEQE_U32_4_EVENT_TYPE_M, + HNS_ROCE_AEQE_U32_4_EVENT_TYPE_S)); +} + +static void hns_roce_db_overflow_handle(struct hns_roce_dev *hr_dev, + struct hns_roce_aeqe *aeqe) +{ + struct device *dev = &hr_dev->pdev->dev; + + switch (roce_get_field(aeqe->asyn, HNS_ROCE_AEQE_U32_4_EVENT_SUB_TYPE_M, + HNS_ROCE_AEQE_U32_4_EVENT_SUB_TYPE_S)) { + case HNS_ROCE_DB_SUBTYPE_SDB_OVF: + dev_warn(dev, "SDB overflow.\n"); + break; + case HNS_ROCE_DB_SUBTYPE_SDB_ALM_OVF: + dev_warn(dev, "SDB almost overflow.\n"); + break; + case HNS_ROCE_DB_SUBTYPE_SDB_ALM_EMP: + dev_warn(dev, "SDB almost empty.\n"); + break; + case HNS_ROCE_DB_SUBTYPE_ODB_OVF: + dev_warn(dev, "ODB overflow.\n"); + break; + case HNS_ROCE_DB_SUBTYPE_ODB_ALM_OVF: + dev_warn(dev, "ODB almost overflow.\n"); + break; + case HNS_ROCE_DB_SUBTYPE_ODB_ALM_EMP: + dev_warn(dev, "SDB almost empty.\n"); + break; + default: + break; + } +} + +static int hns_roce_aeq_int(struct hns_roce_dev *hr_dev, struct hns_roce_eq *eq) +{ + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_aeqe *aeqe; + int aeqes_found = 0; + int qpn = 0; + + while ((aeqe = next_aeqe_sw(eq))) { + dev_dbg(dev, "aeqe = %p, aeqe->asyn.event_type = 0x%lx\n", aeqe, + roce_get_field(aeqe->asyn, + HNS_ROCE_AEQE_U32_4_EVENT_TYPE_M, + HNS_ROCE_AEQE_U32_4_EVENT_TYPE_S)); + /* Memory barrier */ + rmb(); + + switch (roce_get_field(aeqe->asyn, + HNS_ROCE_AEQE_U32_4_EVENT_TYPE_M, + HNS_ROCE_AEQE_U32_4_EVENT_TYPE_S)) { + case HNS_ROCE_EVENT_TYPE_PATH_MIG: + dev_warn(dev, "PATH MIG not supported\n"); + break; + case HNS_ROCE_EVENT_TYPE_COMM_EST: + dev_warn(dev, "COMMUNICATION established\n"); + break; + case HNS_ROCE_EVENT_TYPE_SQ_DRAINED: + dev_warn(dev, "SQ DRAINED not supported\n"); + break; + case HNS_ROCE_EVENT_TYPE_PATH_MIG_FAILED: + dev_warn(dev, "PATH MIG failed\n"); + break; + case HNS_ROCE_EVENT_TYPE_INV_REQ_LOCAL_WQ_ERROR: + dev_warn(dev, "qpn = 0x%lx\n", + roce_get_field(aeqe->event.qp_event.qp, + HNS_ROCE_AEQE_EVENT_QP_EVENT_QP_QPN_M, + HNS_ROCE_AEQE_EVENT_QP_EVENT_QP_QPN_S)); + hns_roce_qp_event(hr_dev, + roce_get_field(aeqe->event.qp_event.qp, + HNS_ROCE_AEQE_EVENT_QP_EVENT_QP_QPN_M, + HNS_ROCE_AEQE_EVENT_QP_EVENT_QP_QPN_S), + roce_get_field(aeqe->asyn, + HNS_ROCE_AEQE_U32_4_EVENT_TYPE_M, + HNS_ROCE_AEQE_U32_4_EVENT_TYPE_S)); + break; + case HNS_ROCE_EVENT_TYPE_WQ_CATAS_ERROR: + hns_roce_wq_catas_err_handle(hr_dev, aeqe, qpn); + break; + case HNS_ROCE_EVENT_TYPE_LOCAL_WQ_ACCESS_ERROR: + hns_roce_local_wq_access_err_handle(hr_dev, aeqe, qpn); + break; + case HNS_ROCE_EVENT_TYPE_SRQ_LIMIT_REACH: + case HNS_ROCE_EVENT_TYPE_SRQ_CATAS_ERROR: + case HNS_ROCE_EVENT_TYPE_SRQ_LAST_WQE_REACH: + dev_warn(dev, "SRQ not support!\n"); + break; + case HNS_ROCE_EVENT_TYPE_CQ_ACCESS_ERROR: + dev_warn(dev, "CQ 0x%lx access err.\n", + roce_get_field(aeqe->event.cq_event.cq, + HNS_ROCE_AEQE_EVENT_CQ_EVENT_CQ_CQN_M, + HNS_ROCE_AEQE_EVENT_CQ_EVENT_CQ_CQN_S)); + hns_roce_cq_event(hr_dev, + le32_to_cpu(roce_get_field(aeqe->event.cq_event.cq, + HNS_ROCE_AEQE_EVENT_CQ_EVENT_CQ_CQN_M, + HNS_ROCE_AEQE_EVENT_CQ_EVENT_CQ_CQN_S)), + roce_get_field(aeqe->asyn, + HNS_ROCE_AEQE_U32_4_EVENT_TYPE_M, + HNS_ROCE_AEQE_U32_4_EVENT_TYPE_S)); + break; + case HNS_ROCE_EVENT_TYPE_CQ_OVERFLOW: + dev_warn(dev, "CQ 0x%lx overflow\n", + roce_get_field(aeqe->event.cq_event.cq, + HNS_ROCE_AEQE_EVENT_CQ_EVENT_CQ_CQN_M, + HNS_ROCE_AEQE_EVENT_CQ_EVENT_CQ_CQN_S)); + hns_roce_cq_event(hr_dev, + le32_to_cpu(roce_get_field(aeqe->event.cq_event.cq, + HNS_ROCE_AEQE_EVENT_CQ_EVENT_CQ_CQN_M, + HNS_ROCE_AEQE_EVENT_CQ_EVENT_CQ_CQN_S)), + roce_get_field(aeqe->asyn, + HNS_ROCE_AEQE_U32_4_EVENT_TYPE_M, + HNS_ROCE_AEQE_U32_4_EVENT_TYPE_S)); + break; + case HNS_ROCE_EVENT_TYPE_CQ_ID_INVALID: + dev_warn(dev, "CQ ID invalid.\n"); + hns_roce_cq_event(hr_dev, + le32_to_cpu(roce_get_field(aeqe->event.cq_event.cq, + HNS_ROCE_AEQE_EVENT_CQ_EVENT_CQ_CQN_M, + HNS_ROCE_AEQE_EVENT_CQ_EVENT_CQ_CQN_S)), + roce_get_field(aeqe->asyn, + HNS_ROCE_AEQE_U32_4_EVENT_TYPE_M, + HNS_ROCE_AEQE_U32_4_EVENT_TYPE_S)); + break; + case HNS_ROCE_EVENT_TYPE_PORT_CHANGE: + dev_warn(dev, "port change.\n"); + break; + case HNS_ROCE_EVENT_TYPE_MB: + hns_roce_cmd_event(hr_dev, + le16_to_cpu(aeqe->event.cmd.token), + aeqe->event.cmd.status, + le64_to_cpu(aeqe->event.cmd.out_param + )); + break; + case HNS_ROCE_EVENT_TYPE_DB_OVERFLOW: + hns_roce_db_overflow_handle(hr_dev, aeqe); + break; + case HNS_ROCE_EVENT_TYPE_CEQ_OVERFLOW: + dev_warn(dev, "CEQ 0x%lx overflow.\n", + roce_get_field(aeqe->event.ce_event.ceqe, + HNS_ROCE_AEQE_EVENT_CE_EVENT_CEQE_CEQN_M, + HNS_ROCE_AEQE_EVENT_CE_EVENT_CEQE_CEQN_S)); + break; + default: + dev_warn(dev, "Unhandled event 0x%lx on EQ %d at index %u\n", + roce_get_field(aeqe->asyn, + HNS_ROCE_AEQE_U32_4_EVENT_TYPE_M, + HNS_ROCE_AEQE_U32_4_EVENT_TYPE_S), + eq->eqn, eq->cons_index); + break; + }; + + eq->cons_index++; + aeqes_found = 1; + + if (eq->cons_index > 2 * hr_dev->caps.aeqe_depth - 1) { + dev_warn(dev, "cons_index overflow, set back to zero\n" + ); + eq->cons_index = 0; + } + } + + eq_set_cons_index(eq, 0); + + return aeqes_found; +} + +static struct hns_roce_ceqe *get_ceqe(struct hns_roce_eq *eq, u32 entry) +{ + unsigned long off = (entry & (eq->entries - 1)) * + HNS_ROCE_CEQ_ENTRY_SIZE; + + return (struct hns_roce_ceqe *)((u8 *) + (eq->buf_list[off / HNS_ROCE_BA_SIZE].buf) + + off % HNS_ROCE_BA_SIZE); +} + +static struct hns_roce_ceqe *next_ceqe_sw(struct hns_roce_eq *eq) +{ + struct hns_roce_ceqe *ceqe = get_ceqe(eq, eq->cons_index); + + return (!!(roce_get_bit(ceqe->ceqe.comp, + HNS_ROCE_CEQE_CEQE_COMP_OWNER_S))) ^ + (!!(eq->cons_index & eq->entries)) ? ceqe : NULL; +} + +static int hns_roce_ceq_int(struct hns_roce_dev *hr_dev, struct hns_roce_eq *eq) +{ + struct hns_roce_ceqe *ceqe; + int ceqes_found = 0; + u32 cqn; + + while ((ceqe = next_ceqe_sw(eq))) { + /* Memory barrier */ + rmb(); + cqn = roce_get_field(ceqe->ceqe.comp, + HNS_ROCE_CEQE_CEQE_COMP_CQN_M, + HNS_ROCE_CEQE_CEQE_COMP_CQN_S); + hns_roce_cq_completion(hr_dev, cqn); + + ++eq->cons_index; + ceqes_found = 1; + + if (eq->cons_index > 2 * hr_dev->caps.ceqe_depth[eq->eqn] - 1) { + dev_warn(&eq->hr_dev->pdev->dev, + "cons_index overflow, set back to zero\n"); + eq->cons_index = 0; + } + } + + eq_set_cons_index(eq, 0); + + return ceqes_found; +} + +static int hns_roce_aeq_ovf_int(struct hns_roce_dev *hr_dev, + struct hns_roce_eq *eq) +{ + struct device *dev = &eq->hr_dev->pdev->dev; + int eqovf_found = 0; + u32 caepaemask_val; + u32 cealmovf_val; + u32 caepaest_val; + u32 aeshift_val; + u32 ceshift_val; + u32 cemask_val; + int i = 0; + + /** + * AEQ overflow ECC mult bit err CEQ overflow alarm + * must clear interrupt, mask irq, clear irq, cancel mask operation + */ + aeshift_val = roce_read(hr_dev, ROCEE_CAEP_AEQC_AEQE_SHIFT_REG); + + if (roce_get_bit(aeshift_val, + ROCEE_CAEP_AEQC_AEQE_SHIFT_CAEP_AEQ_ALM_OVF_INT_ST_S) == 1) { + dev_warn(dev, "AEQ overflow!\n"); + + /* Set mask */ + caepaemask_val = roce_read(hr_dev, ROCEE_CAEP_AE_MASK_REG); + roce_set_bit(caepaemask_val, + ROCEE_CAEP_AE_MASK_CAEP_AEQ_ALM_OVF_MASK_S, + HNS_ROCE_INT_MASK_ENABLE); + roce_write(hr_dev, ROCEE_CAEP_AE_MASK_REG, caepaemask_val); + + /* Clear int state(INT_WC : write 1 clear) */ + caepaest_val = roce_read(hr_dev, ROCEE_CAEP_AE_ST_REG); + roce_set_bit(caepaest_val, + ROCEE_CAEP_AE_ST_CAEP_AEQ_ALM_OVF_S, 1); + roce_write(hr_dev, ROCEE_CAEP_AE_ST_REG, caepaest_val); + + /* Clear mask */ + caepaemask_val = roce_read(hr_dev, ROCEE_CAEP_AE_MASK_REG); + roce_set_bit(caepaemask_val, + ROCEE_CAEP_AE_MASK_CAEP_AEQ_ALM_OVF_MASK_S, + HNS_ROCE_INT_MASK_DISABLE); + roce_write(hr_dev, ROCEE_CAEP_AE_MASK_REG, caepaemask_val); + } + + /* CEQ almost overflow */ + for (i = 0; i < hr_dev->caps.num_comp_vectors; i++) { + ceshift_val = roce_read(hr_dev, ROCEE_CAEP_CEQC_SHIFT_0_REG + + i * CEQ_REG_OFFSET); + + if (roce_get_bit(ceshift_val, + ROCEE_CAEP_CEQC_SHIFT_CAEP_CEQ_ALM_OVF_INT_ST_S) == 1) { + dev_warn(dev, "CEQ[%d] almost overflow!\n", i); + eqovf_found++; + + /* Set mask */ + cemask_val = roce_read(hr_dev, + ROCEE_CAEP_CE_IRQ_MASK_0_REG + + i * CEQ_REG_OFFSET); + roce_set_bit(cemask_val, + ROCEE_CAEP_CE_IRQ_MASK_CAEP_CEQ_ALM_OVF_MASK_S, + HNS_ROCE_INT_MASK_ENABLE); + roce_write(hr_dev, ROCEE_CAEP_CE_IRQ_MASK_0_REG + + i * CEQ_REG_OFFSET, cemask_val); + + /* Clear int state(INT_WC : write 1 clear) */ + cealmovf_val = roce_read(hr_dev, + ROCEE_CAEP_CEQ_ALM_OVF_0_REG + + i * CEQ_REG_OFFSET); + roce_set_bit(cealmovf_val, + ROCEE_CAEP_CEQ_ALM_OVF_CAEP_CEQ_ALM_OVF_S, + 1); + roce_write(hr_dev, ROCEE_CAEP_CEQ_ALM_OVF_0_REG + + i * CEQ_REG_OFFSET, cealmovf_val); + + /* Clear mask */ + cemask_val = roce_read(hr_dev, + ROCEE_CAEP_CE_IRQ_MASK_0_REG + + i * CEQ_REG_OFFSET); + roce_set_bit(cemask_val, + ROCEE_CAEP_CE_IRQ_MASK_CAEP_CEQ_ALM_OVF_MASK_S, + HNS_ROCE_INT_MASK_DISABLE); + roce_write(hr_dev, ROCEE_CAEP_CE_IRQ_MASK_0_REG + + i * CEQ_REG_OFFSET, cemask_val); + } + } + + /* ECC multi-bit error alarm */ + dev_warn(dev, "ECC UCERR ALARM: 0x%x, 0x%x, 0x%x\n", + roce_read(hr_dev, ROCEE_ECC_UCERR_ALM0_REG), + roce_read(hr_dev, ROCEE_ECC_UCERR_ALM1_REG), + roce_read(hr_dev, ROCEE_ECC_UCERR_ALM2_REG)); + + dev_warn(dev, "ECC CERR ALARM: 0x%x, 0x%x, 0x%x\n", + roce_read(hr_dev, ROCEE_ECC_CERR_ALM0_REG), + roce_read(hr_dev, ROCEE_ECC_CERR_ALM1_REG), + roce_read(hr_dev, ROCEE_ECC_CERR_ALM2_REG)); + + return eqovf_found; +} + +static int hns_roce_eq_int(struct hns_roce_dev *hr_dev, struct hns_roce_eq *eq) +{ + int eqes_found = 0; + + if (likely(eq->type_flag == HNS_ROCE_CEQ)) + /* CEQ irq routine, CEQ is pulse irq, not clear */ + eqes_found = hns_roce_ceq_int(hr_dev, eq); + else if (likely(eq->type_flag == HNS_ROCE_AEQ)) + /* AEQ irq routine, AEQ is pulse irq, not clear */ + eqes_found = hns_roce_aeq_int(hr_dev, eq); + else + /* AEQ queue overflow irq */ + eqes_found = hns_roce_aeq_ovf_int(hr_dev, eq); + + return eqes_found; +} + +static irqreturn_t hns_roce_msi_x_interrupt(int irq, void *eq_ptr) +{ + int int_work = 0; + struct hns_roce_eq *eq = eq_ptr; + struct hns_roce_dev *hr_dev = eq->hr_dev; + + int_work = hns_roce_eq_int(hr_dev, eq); + + return IRQ_RETVAL(int_work); +} + +static void hns_roce_enable_eq(struct hns_roce_dev *hr_dev, int eq_num, + int enable_flag) +{ + void __iomem *eqc = hr_dev->eq_table.eqc_base[eq_num]; + u32 val; + + val = readl(eqc); + + if (enable_flag) + roce_set_field(val, + ROCEE_CAEP_AEQC_AEQE_SHIFT_CAEP_AEQC_STATE_M, + ROCEE_CAEP_AEQC_AEQE_SHIFT_CAEP_AEQC_STATE_S, + HNS_ROCE_EQ_STAT_VALID); + else + roce_set_field(val, + ROCEE_CAEP_AEQC_AEQE_SHIFT_CAEP_AEQC_STATE_M, + ROCEE_CAEP_AEQC_AEQE_SHIFT_CAEP_AEQC_STATE_S, + HNS_ROCE_EQ_STAT_INVALID); + writel(val, eqc); +} + +static int hns_roce_create_eq(struct hns_roce_dev *hr_dev, + struct hns_roce_eq *eq) +{ + void __iomem *eqc = hr_dev->eq_table.eqc_base[eq->eqn]; + struct device *dev = &hr_dev->pdev->dev; + dma_addr_t tmp_dma_addr; + u32 eqconsindx_val = 0; + u32 eqcuridx_val = 0; + u32 eqshift_val = 0; + int num_bas = 0; + int ret; + int i; + + num_bas = (PAGE_ALIGN(eq->entries * eq->eqe_size) + + HNS_ROCE_BA_SIZE - 1) / HNS_ROCE_BA_SIZE; + + if ((eq->entries * eq->eqe_size) > HNS_ROCE_BA_SIZE) { + dev_err(dev, "[error]eq buf %d gt ba size(%d) need bas=%d\n", + (eq->entries * eq->eqe_size), HNS_ROCE_BA_SIZE, + num_bas); + return -EINVAL; + } + + eq->buf_list = kcalloc(num_bas, sizeof(*eq->buf_list), GFP_KERNEL); + if (!eq->buf_list) + return -ENOMEM; + + for (i = 0; i < num_bas; ++i) { + eq->buf_list[i].buf = dma_alloc_coherent(dev, HNS_ROCE_BA_SIZE, + &tmp_dma_addr, + GFP_KERNEL); + if (!eq->buf_list[i].buf) { + ret = -ENOMEM; + goto err_out_free_pages; + } + + eq->buf_list[i].map = tmp_dma_addr; + memset(eq->buf_list[i].buf, 0, HNS_ROCE_BA_SIZE); + } + eq->cons_index = 0; + roce_set_field(eqshift_val, + ROCEE_CAEP_AEQC_AEQE_SHIFT_CAEP_AEQC_STATE_M, + ROCEE_CAEP_AEQC_AEQE_SHIFT_CAEP_AEQC_STATE_S, + HNS_ROCE_EQ_STAT_INVALID); + roce_set_field(eqshift_val, + ROCEE_CAEP_AEQC_AEQE_SHIFT_CAEP_AEQC_AEQE_SHIFT_M, + ROCEE_CAEP_AEQC_AEQE_SHIFT_CAEP_AEQC_AEQE_SHIFT_S, + eq->log_entries); + writel(eqshift_val, eqc); + + /* Configure eq extended address 12~44bit */ + writel((u32)(eq->buf_list[0].map >> 12), (u8 *)eqc + 4); + + /* + * Configure eq extended address 45~49 bit. + * 44 = 32 + 12, When evaluating addr to hardware, shift 12 because of + * using 4K page, and shift more 32 because of + * caculating the high 32 bit value evaluated to hardware. + */ + roce_set_field(eqcuridx_val, ROCEE_CAEP_AEQE_CUR_IDX_CAEP_AEQ_BT_H_M, + ROCEE_CAEP_AEQE_CUR_IDX_CAEP_AEQ_BT_H_S, + eq->buf_list[0].map >> 44); + roce_set_field(eqcuridx_val, + ROCEE_CAEP_AEQE_CUR_IDX_CAEP_AEQE_CUR_IDX_M, + ROCEE_CAEP_AEQE_CUR_IDX_CAEP_AEQE_CUR_IDX_S, 0); + writel(eqcuridx_val, (u8 *)eqc + 8); + + /* Configure eq consumer index */ + roce_set_field(eqconsindx_val, + ROCEE_CAEP_AEQE_CONS_IDX_CAEP_AEQE_CONS_IDX_M, + ROCEE_CAEP_AEQE_CONS_IDX_CAEP_AEQE_CONS_IDX_S, 0); + writel(eqconsindx_val, (u8 *)eqc + 0xc); + + return 0; + +err_out_free_pages: + for (i = i - 1; i >= 0; i--) + dma_free_coherent(dev, HNS_ROCE_BA_SIZE, eq->buf_list[i].buf, + eq->buf_list[i].map); + + kfree(eq->buf_list); + return ret; +} + +static void hns_roce_free_eq(struct hns_roce_dev *hr_dev, + struct hns_roce_eq *eq) +{ + int i = 0; + int npages = (PAGE_ALIGN(eq->eqe_size * eq->entries) + + HNS_ROCE_BA_SIZE - 1) / HNS_ROCE_BA_SIZE; + + if (!eq->buf_list) + return; + + for (i = 0; i < npages; ++i) + dma_free_coherent(&hr_dev->pdev->dev, HNS_ROCE_BA_SIZE, + eq->buf_list[i].buf, eq->buf_list[i].map); + + kfree(eq->buf_list); +} + +static void hns_roce_int_mask_en(struct hns_roce_dev *hr_dev) +{ + int i = 0; + u32 aemask_val; + int masken = 0; + + /* AEQ INT */ + aemask_val = roce_read(hr_dev, ROCEE_CAEP_AE_MASK_REG); + roce_set_bit(aemask_val, ROCEE_CAEP_AE_MASK_CAEP_AEQ_ALM_OVF_MASK_S, + masken); + roce_set_bit(aemask_val, ROCEE_CAEP_AE_MASK_CAEP_AE_IRQ_MASK_S, masken); + roce_write(hr_dev, ROCEE_CAEP_AE_MASK_REG, aemask_val); + + /* CEQ INT */ + for (i = 0; i < hr_dev->caps.num_comp_vectors; i++) { + /* IRQ mask */ + roce_write(hr_dev, ROCEE_CAEP_CE_IRQ_MASK_0_REG + + i * CEQ_REG_OFFSET, masken); + } +} + +static void hns_roce_ce_int_default_cfg(struct hns_roce_dev *hr_dev) +{ + /* Configure ce int interval */ + roce_write(hr_dev, ROCEE_CAEP_CE_INTERVAL_CFG_REG, + HNS_ROCE_CEQ_DEFAULT_INTERVAL); + + /* Configure ce int burst num */ + roce_write(hr_dev, ROCEE_CAEP_CE_BURST_NUM_CFG_REG, + HNS_ROCE_CEQ_DEFAULT_BURST_NUM); +} + +int hns_roce_init_eq_table(struct hns_roce_dev *hr_dev) +{ + struct hns_roce_eq_table *eq_table = &hr_dev->eq_table; + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_eq *eq = NULL; + int eq_num = 0; + int ret = 0; + int i = 0; + int j = 0; + + eq_num = hr_dev->caps.num_comp_vectors + hr_dev->caps.num_aeq_vectors; + eq_table->eq = kcalloc(eq_num, sizeof(*eq_table->eq), GFP_KERNEL); + if (!eq_table->eq) + return -ENOMEM; + + eq_table->eqc_base = kcalloc(eq_num, sizeof(*eq_table->eqc_base), + GFP_KERNEL); + if (!eq_table->eqc_base) { + ret = -ENOMEM; + goto err_eqc_base_alloc_fail; + } + + for (i = 0; i < eq_num; i++) { + eq = &eq_table->eq[i]; + eq->hr_dev = hr_dev; + eq->eqn = i; + eq->irq = hr_dev->irq[i]; + eq->log_page_size = PAGE_SHIFT; + + if (i < hr_dev->caps.num_comp_vectors) { + /* CEQ */ + eq_table->eqc_base[i] = hr_dev->reg_base + + ROCEE_CAEP_CEQC_SHIFT_0_REG + + HNS_ROCE_CEQC_REG_OFFSET * i; + eq->type_flag = HNS_ROCE_CEQ; + eq->doorbell = hr_dev->reg_base + + ROCEE_CAEP_CEQC_CONS_IDX_0_REG + + HNS_ROCE_CEQC_REG_OFFSET * i; + eq->entries = hr_dev->caps.ceqe_depth[i]; + eq->log_entries = ilog2(eq->entries); + eq->eqe_size = sizeof(struct hns_roce_ceqe); + } else { + /* AEQ */ + eq_table->eqc_base[i] = hr_dev->reg_base + + ROCEE_CAEP_AEQC_AEQE_SHIFT_REG; + eq->type_flag = HNS_ROCE_AEQ; + eq->doorbell = hr_dev->reg_base + + ROCEE_CAEP_AEQE_CONS_IDX_REG; + eq->entries = hr_dev->caps.aeqe_depth; + eq->log_entries = ilog2(eq->entries); + eq->eqe_size = sizeof(struct hns_roce_aeqe); + } + } + + /* Disable irq */ + hns_roce_int_mask_en(hr_dev); + + /* Configure CE irq interval and burst num */ + hns_roce_ce_int_default_cfg(hr_dev); + + for (i = 0; i < eq_num; i++) { + ret = hns_roce_create_eq(hr_dev, &eq_table->eq[i]); + if (ret) { + dev_err(dev, "eq create failed\n"); + goto err_create_eq_fail; + } + } + + for (j = 0; j < eq_num; j++) { + ret = request_irq(eq_table->eq[j].irq, hns_roce_msi_x_interrupt, + 0, hr_dev->irq_names, eq_table->eq + j); + if (ret) { + dev_err(dev, "request irq error!\n"); + goto err_request_irq_fail; + } + } + + for (i = 0; i < eq_num; i++) + hns_roce_enable_eq(hr_dev, i, EQ_ENABLE); + + return 0; + +err_request_irq_fail: + for (j = j - 1; j >= 0; j--) + free_irq(eq_table->eq[j].irq, eq_table->eq + j); + +err_create_eq_fail: + for (i = i - 1; i >= 0; i--) + hns_roce_free_eq(hr_dev, &eq_table->eq[i]); + + kfree(eq_table->eqc_base); + +err_eqc_base_alloc_fail: + kfree(eq_table->eq); + + return ret; +} + +void hns_roce_cleanup_eq_table(struct hns_roce_dev *hr_dev) +{ + int i; + int eq_num; + struct hns_roce_eq_table *eq_table = &hr_dev->eq_table; + + eq_num = hr_dev->caps.num_comp_vectors + hr_dev->caps.num_aeq_vectors; + for (i = 0; i < eq_num; i++) { + /* Disable EQ */ + hns_roce_enable_eq(hr_dev, i, EQ_DISABLE); + + free_irq(eq_table->eq[i].irq, eq_table->eq + i); + + hns_roce_free_eq(hr_dev, &eq_table->eq[i]); + } + + kfree(eq_table->eqc_base); + kfree(eq_table->eq); +} diff --git a/drivers/infiniband/hw/hns/hns_roce_eq.h b/drivers/infiniband/hw/hns/hns_roce_eq.h new file mode 100644 index 000000000000..fe4388191a3c --- /dev/null +++ b/drivers/infiniband/hw/hns/hns_roce_eq.h @@ -0,0 +1,130 @@ +/* + * Copyright (c) 2016 Hisilicon Limited. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef _HNS_ROCE_EQ_H +#define _HNS_ROCE_EQ_H + +#define HNS_ROCE_CEQ 1 +#define HNS_ROCE_AEQ 2 + +#define HNS_ROCE_CEQ_ENTRY_SIZE 0x4 +#define HNS_ROCE_AEQ_ENTRY_SIZE 0x10 +#define HNS_ROCE_CEQC_REG_OFFSET 0x18 + +#define HNS_ROCE_CEQ_DEFAULT_INTERVAL 0x10 +#define HNS_ROCE_CEQ_DEFAULT_BURST_NUM 0x10 + +#define HNS_ROCE_INT_MASK_DISABLE 0 +#define HNS_ROCE_INT_MASK_ENABLE 1 + +#define EQ_ENABLE 1 +#define EQ_DISABLE 0 +#define CONS_INDEX_MASK 0xffff + +#define CEQ_REG_OFFSET 0x18 + +enum { + HNS_ROCE_EQ_STAT_INVALID = 0, + HNS_ROCE_EQ_STAT_VALID = 2, +}; + +struct hns_roce_aeqe { + u32 asyn; + union { + struct { + u32 qp; + u32 rsv0; + u32 rsv1; + } qp_event; + + struct { + u32 cq; + u32 rsv0; + u32 rsv1; + } cq_event; + + struct { + u32 port; + u32 rsv0; + u32 rsv1; + } port_event; + + struct { + u32 ceqe; + u32 rsv0; + u32 rsv1; + } ce_event; + + struct { + __le64 out_param; + __le16 token; + u8 status; + u8 rsv0; + } __packed cmd; + } event; +}; + +#define HNS_ROCE_AEQE_U32_4_EVENT_TYPE_S 16 +#define HNS_ROCE_AEQE_U32_4_EVENT_TYPE_M \ + (((1UL << 8) - 1) << HNS_ROCE_AEQE_U32_4_EVENT_TYPE_S) + +#define HNS_ROCE_AEQE_U32_4_EVENT_SUB_TYPE_S 24 +#define HNS_ROCE_AEQE_U32_4_EVENT_SUB_TYPE_M \ + (((1UL << 7) - 1) << HNS_ROCE_AEQE_U32_4_EVENT_SUB_TYPE_S) + +#define HNS_ROCE_AEQE_U32_4_OWNER_S 31 + +#define HNS_ROCE_AEQE_EVENT_QP_EVENT_QP_QPN_S 0 +#define HNS_ROCE_AEQE_EVENT_QP_EVENT_QP_QPN_M \ + (((1UL << 24) - 1) << HNS_ROCE_AEQE_EVENT_QP_EVENT_QP_QPN_S) + +#define HNS_ROCE_AEQE_EVENT_CQ_EVENT_CQ_CQN_S 0 +#define HNS_ROCE_AEQE_EVENT_CQ_EVENT_CQ_CQN_M \ + (((1UL << 16) - 1) << HNS_ROCE_AEQE_EVENT_CQ_EVENT_CQ_CQN_S) + +#define HNS_ROCE_AEQE_EVENT_CE_EVENT_CEQE_CEQN_S 0 +#define HNS_ROCE_AEQE_EVENT_CE_EVENT_CEQE_CEQN_M \ + (((1UL << 5) - 1) << HNS_ROCE_AEQE_EVENT_CE_EVENT_CEQE_CEQN_S) + +struct hns_roce_ceqe { + union { + int comp; + } ceqe; +}; + +#define HNS_ROCE_CEQE_CEQE_COMP_OWNER_S 0 + +#define HNS_ROCE_CEQE_CEQE_COMP_CQN_S 16 +#define HNS_ROCE_CEQE_CEQE_COMP_CQN_M \ + (((1UL << 16) - 1) << HNS_ROCE_CEQE_CEQE_COMP_CQN_S) + +#endif /* _HNS_ROCE_EQ_H */ diff --git a/drivers/infiniband/hw/hns/hns_roce_hem.c b/drivers/infiniband/hw/hns/hns_roce_hem.c new file mode 100644 index 000000000000..d53d64362389 --- /dev/null +++ b/drivers/infiniband/hw/hns/hns_roce_hem.c @@ -0,0 +1,476 @@ +/* + * Copyright (c) 2016 Hisilicon Limited. + * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/platform_device.h> +#include "hns_roce_device.h" +#include "hns_roce_hem.h" +#include "hns_roce_common.h" + +#define HW_SYNC_TIMEOUT_MSECS 500 +#define HW_SYNC_SLEEP_TIME_INTERVAL 20 + +#define HNS_ROCE_HEM_ALLOC_SIZE (1 << 17) +#define HNS_ROCE_TABLE_CHUNK_SIZE (1 << 17) + +#define DMA_ADDR_T_SHIFT 12 +#define BT_CMD_SYNC_SHIFT 31 +#define BT_BA_SHIFT 32 + +struct hns_roce_hem *hns_roce_alloc_hem(struct hns_roce_dev *hr_dev, int npages, + gfp_t gfp_mask) +{ + struct hns_roce_hem_chunk *chunk = NULL; + struct hns_roce_hem *hem; + struct scatterlist *mem; + int order; + void *buf; + + WARN_ON(gfp_mask & __GFP_HIGHMEM); + + hem = kmalloc(sizeof(*hem), + gfp_mask & ~(__GFP_HIGHMEM | __GFP_NOWARN)); + if (!hem) + return NULL; + + hem->refcount = 0; + INIT_LIST_HEAD(&hem->chunk_list); + + order = get_order(HNS_ROCE_HEM_ALLOC_SIZE); + + while (npages > 0) { + if (!chunk) { + chunk = kmalloc(sizeof(*chunk), + gfp_mask & ~(__GFP_HIGHMEM | __GFP_NOWARN)); + if (!chunk) + goto fail; + + sg_init_table(chunk->mem, HNS_ROCE_HEM_CHUNK_LEN); + chunk->npages = 0; + chunk->nsg = 0; + list_add_tail(&chunk->list, &hem->chunk_list); + } + + while (1 << order > npages) + --order; + + /* + * Alloc memory one time. If failed, don't alloc small block + * memory, directly return fail. + */ + mem = &chunk->mem[chunk->npages]; + buf = dma_alloc_coherent(&hr_dev->pdev->dev, PAGE_SIZE << order, + &sg_dma_address(mem), gfp_mask); + if (!buf) + goto fail; + + sg_set_buf(mem, buf, PAGE_SIZE << order); + WARN_ON(mem->offset); + sg_dma_len(mem) = PAGE_SIZE << order; + + ++chunk->npages; + ++chunk->nsg; + npages -= 1 << order; + } + + return hem; + +fail: + hns_roce_free_hem(hr_dev, hem); + return NULL; +} + +void hns_roce_free_hem(struct hns_roce_dev *hr_dev, struct hns_roce_hem *hem) +{ + struct hns_roce_hem_chunk *chunk, *tmp; + int i; + + if (!hem) + return; + + list_for_each_entry_safe(chunk, tmp, &hem->chunk_list, list) { + for (i = 0; i < chunk->npages; ++i) + dma_free_coherent(&hr_dev->pdev->dev, + chunk->mem[i].length, + lowmem_page_address(sg_page(&chunk->mem[i])), + sg_dma_address(&chunk->mem[i])); + kfree(chunk); + } + + kfree(hem); +} + +static int hns_roce_set_hem(struct hns_roce_dev *hr_dev, + struct hns_roce_hem_table *table, unsigned long obj) +{ + struct device *dev = &hr_dev->pdev->dev; + spinlock_t *lock = &hr_dev->bt_cmd_lock; + unsigned long end = 0; + unsigned long flags; + struct hns_roce_hem_iter iter; + void __iomem *bt_cmd; + u32 bt_cmd_h_val = 0; + u32 bt_cmd_val[2]; + u32 bt_cmd_l = 0; + u64 bt_ba = 0; + int ret = 0; + + /* Find the HEM(Hardware Entry Memory) entry */ + unsigned long i = (obj & (table->num_obj - 1)) / + (HNS_ROCE_TABLE_CHUNK_SIZE / table->obj_size); + + switch (table->type) { + case HEM_TYPE_QPC: + roce_set_field(bt_cmd_h_val, ROCEE_BT_CMD_H_ROCEE_BT_CMD_MDF_M, + ROCEE_BT_CMD_H_ROCEE_BT_CMD_MDF_S, HEM_TYPE_QPC); + break; + case HEM_TYPE_MTPT: + roce_set_field(bt_cmd_h_val, ROCEE_BT_CMD_H_ROCEE_BT_CMD_MDF_M, + ROCEE_BT_CMD_H_ROCEE_BT_CMD_MDF_S, + HEM_TYPE_MTPT); + break; + case HEM_TYPE_CQC: + roce_set_field(bt_cmd_h_val, ROCEE_BT_CMD_H_ROCEE_BT_CMD_MDF_M, + ROCEE_BT_CMD_H_ROCEE_BT_CMD_MDF_S, HEM_TYPE_CQC); + break; + case HEM_TYPE_SRQC: + roce_set_field(bt_cmd_h_val, ROCEE_BT_CMD_H_ROCEE_BT_CMD_MDF_M, + ROCEE_BT_CMD_H_ROCEE_BT_CMD_MDF_S, + HEM_TYPE_SRQC); + break; + default: + return ret; + } + roce_set_field(bt_cmd_h_val, ROCEE_BT_CMD_H_ROCEE_BT_CMD_IN_MDF_M, + ROCEE_BT_CMD_H_ROCEE_BT_CMD_IN_MDF_S, obj); + roce_set_bit(bt_cmd_h_val, ROCEE_BT_CMD_H_ROCEE_BT_CMD_S, 0); + roce_set_bit(bt_cmd_h_val, ROCEE_BT_CMD_H_ROCEE_BT_CMD_HW_SYNS_S, 1); + + /* Currently iter only a chunk */ + for (hns_roce_hem_first(table->hem[i], &iter); + !hns_roce_hem_last(&iter); hns_roce_hem_next(&iter)) { + bt_ba = hns_roce_hem_addr(&iter) >> DMA_ADDR_T_SHIFT; + + spin_lock_irqsave(lock, flags); + + bt_cmd = hr_dev->reg_base + ROCEE_BT_CMD_H_REG; + + end = msecs_to_jiffies(HW_SYNC_TIMEOUT_MSECS) + jiffies; + while (1) { + if (readl(bt_cmd) >> BT_CMD_SYNC_SHIFT) { + if (!(time_before(jiffies, end))) { + dev_err(dev, "Write bt_cmd err,hw_sync is not zero.\n"); + spin_unlock_irqrestore(lock, flags); + return -EBUSY; + } + } else { + break; + } + msleep(HW_SYNC_SLEEP_TIME_INTERVAL); + } + + bt_cmd_l = (u32)bt_ba; + roce_set_field(bt_cmd_h_val, ROCEE_BT_CMD_H_ROCEE_BT_CMD_BA_H_M, + ROCEE_BT_CMD_H_ROCEE_BT_CMD_BA_H_S, + bt_ba >> BT_BA_SHIFT); + + bt_cmd_val[0] = bt_cmd_l; + bt_cmd_val[1] = bt_cmd_h_val; + hns_roce_write64_k(bt_cmd_val, + hr_dev->reg_base + ROCEE_BT_CMD_L_REG); + spin_unlock_irqrestore(lock, flags); + } + + return ret; +} + +static int hns_roce_clear_hem(struct hns_roce_dev *hr_dev, + struct hns_roce_hem_table *table, + unsigned long obj) +{ + struct device *dev = &hr_dev->pdev->dev; + unsigned long end = 0; + unsigned long flags; + void __iomem *bt_cmd; + uint32_t bt_cmd_val[2]; + u32 bt_cmd_h_val = 0; + int ret = 0; + + switch (table->type) { + case HEM_TYPE_QPC: + roce_set_field(bt_cmd_h_val, ROCEE_BT_CMD_H_ROCEE_BT_CMD_MDF_M, + ROCEE_BT_CMD_H_ROCEE_BT_CMD_MDF_S, HEM_TYPE_QPC); + break; + case HEM_TYPE_MTPT: + roce_set_field(bt_cmd_h_val, ROCEE_BT_CMD_H_ROCEE_BT_CMD_MDF_M, + ROCEE_BT_CMD_H_ROCEE_BT_CMD_MDF_S, + HEM_TYPE_MTPT); + break; + case HEM_TYPE_CQC: + roce_set_field(bt_cmd_h_val, ROCEE_BT_CMD_H_ROCEE_BT_CMD_MDF_M, + ROCEE_BT_CMD_H_ROCEE_BT_CMD_MDF_S, HEM_TYPE_CQC); + break; + case HEM_TYPE_SRQC: + roce_set_field(bt_cmd_h_val, ROCEE_BT_CMD_H_ROCEE_BT_CMD_MDF_M, + ROCEE_BT_CMD_H_ROCEE_BT_CMD_MDF_S, + HEM_TYPE_SRQC); + break; + default: + return ret; + } + roce_set_field(bt_cmd_h_val, ROCEE_BT_CMD_H_ROCEE_BT_CMD_IN_MDF_M, + ROCEE_BT_CMD_H_ROCEE_BT_CMD_IN_MDF_S, obj); + roce_set_bit(bt_cmd_h_val, ROCEE_BT_CMD_H_ROCEE_BT_CMD_S, 0); + roce_set_bit(bt_cmd_h_val, ROCEE_BT_CMD_H_ROCEE_BT_CMD_HW_SYNS_S, 1); + roce_set_field(bt_cmd_h_val, ROCEE_BT_CMD_H_ROCEE_BT_CMD_BA_H_M, + ROCEE_BT_CMD_H_ROCEE_BT_CMD_BA_H_S, 0); + + spin_lock_irqsave(&hr_dev->bt_cmd_lock, flags); + + bt_cmd = hr_dev->reg_base + ROCEE_BT_CMD_H_REG; + + end = msecs_to_jiffies(HW_SYNC_TIMEOUT_MSECS) + jiffies; + while (1) { + if (readl(bt_cmd) >> BT_CMD_SYNC_SHIFT) { + if (!(time_before(jiffies, end))) { + dev_err(dev, "Write bt_cmd err,hw_sync is not zero.\n"); + spin_unlock_irqrestore(&hr_dev->bt_cmd_lock, + flags); + return -EBUSY; + } + } else { + break; + } + msleep(HW_SYNC_SLEEP_TIME_INTERVAL); + } + + bt_cmd_val[0] = 0; + bt_cmd_val[1] = bt_cmd_h_val; + hns_roce_write64_k(bt_cmd_val, hr_dev->reg_base + ROCEE_BT_CMD_L_REG); + spin_unlock_irqrestore(&hr_dev->bt_cmd_lock, flags); + + return ret; +} + +int hns_roce_table_get(struct hns_roce_dev *hr_dev, + struct hns_roce_hem_table *table, unsigned long obj) +{ + struct device *dev = &hr_dev->pdev->dev; + int ret = 0; + unsigned long i; + + i = (obj & (table->num_obj - 1)) / (HNS_ROCE_TABLE_CHUNK_SIZE / + table->obj_size); + + mutex_lock(&table->mutex); + + if (table->hem[i]) { + ++table->hem[i]->refcount; + goto out; + } + + table->hem[i] = hns_roce_alloc_hem(hr_dev, + HNS_ROCE_TABLE_CHUNK_SIZE >> PAGE_SHIFT, + (table->lowmem ? GFP_KERNEL : + GFP_HIGHUSER) | __GFP_NOWARN); + if (!table->hem[i]) { + ret = -ENOMEM; + goto out; + } + + /* Set HEM base address(128K/page, pa) to Hardware */ + if (hns_roce_set_hem(hr_dev, table, obj)) { + ret = -ENODEV; + dev_err(dev, "set HEM base address to HW failed.\n"); + goto out; + } + + ++table->hem[i]->refcount; +out: + mutex_unlock(&table->mutex); + return ret; +} + +void hns_roce_table_put(struct hns_roce_dev *hr_dev, + struct hns_roce_hem_table *table, unsigned long obj) +{ + struct device *dev = &hr_dev->pdev->dev; + unsigned long i; + + i = (obj & (table->num_obj - 1)) / + (HNS_ROCE_TABLE_CHUNK_SIZE / table->obj_size); + + mutex_lock(&table->mutex); + + if (--table->hem[i]->refcount == 0) { + /* Clear HEM base address */ + if (hns_roce_clear_hem(hr_dev, table, obj)) + dev_warn(dev, "Clear HEM base address failed.\n"); + + hns_roce_free_hem(hr_dev, table->hem[i]); + table->hem[i] = NULL; + } + + mutex_unlock(&table->mutex); +} + +void *hns_roce_table_find(struct hns_roce_hem_table *table, unsigned long obj, + dma_addr_t *dma_handle) +{ + struct hns_roce_hem_chunk *chunk; + unsigned long idx; + int i; + int offset, dma_offset; + struct hns_roce_hem *hem; + struct page *page = NULL; + + if (!table->lowmem) + return NULL; + + mutex_lock(&table->mutex); + idx = (obj & (table->num_obj - 1)) * table->obj_size; + hem = table->hem[idx / HNS_ROCE_TABLE_CHUNK_SIZE]; + dma_offset = offset = idx % HNS_ROCE_TABLE_CHUNK_SIZE; + + if (!hem) + goto out; + + list_for_each_entry(chunk, &hem->chunk_list, list) { + for (i = 0; i < chunk->npages; ++i) { + if (dma_handle && dma_offset >= 0) { + if (sg_dma_len(&chunk->mem[i]) > + (u32)dma_offset) + *dma_handle = sg_dma_address( + &chunk->mem[i]) + dma_offset; + dma_offset -= sg_dma_len(&chunk->mem[i]); + } + + if (chunk->mem[i].length > (u32)offset) { + page = sg_page(&chunk->mem[i]); + goto out; + } + offset -= chunk->mem[i].length; + } + } + +out: + mutex_unlock(&table->mutex); + return page ? lowmem_page_address(page) + offset : NULL; +} + +int hns_roce_table_get_range(struct hns_roce_dev *hr_dev, + struct hns_roce_hem_table *table, + unsigned long start, unsigned long end) +{ + unsigned long inc = HNS_ROCE_TABLE_CHUNK_SIZE / table->obj_size; + unsigned long i = 0; + int ret = 0; + + /* Allocate MTT entry memory according to chunk(128K) */ + for (i = start; i <= end; i += inc) { + ret = hns_roce_table_get(hr_dev, table, i); + if (ret) + goto fail; + } + + return 0; + +fail: + while (i > start) { + i -= inc; + hns_roce_table_put(hr_dev, table, i); + } + return ret; +} + +void hns_roce_table_put_range(struct hns_roce_dev *hr_dev, + struct hns_roce_hem_table *table, + unsigned long start, unsigned long end) +{ + unsigned long i; + + for (i = start; i <= end; + i += HNS_ROCE_TABLE_CHUNK_SIZE / table->obj_size) + hns_roce_table_put(hr_dev, table, i); +} + +int hns_roce_init_hem_table(struct hns_roce_dev *hr_dev, + struct hns_roce_hem_table *table, u32 type, + unsigned long obj_size, unsigned long nobj, + int use_lowmem) +{ + unsigned long obj_per_chunk; + unsigned long num_hem; + + obj_per_chunk = HNS_ROCE_TABLE_CHUNK_SIZE / obj_size; + num_hem = (nobj + obj_per_chunk - 1) / obj_per_chunk; + + table->hem = kcalloc(num_hem, sizeof(*table->hem), GFP_KERNEL); + if (!table->hem) + return -ENOMEM; + + table->type = type; + table->num_hem = num_hem; + table->num_obj = nobj; + table->obj_size = obj_size; + table->lowmem = use_lowmem; + mutex_init(&table->mutex); + + return 0; +} + +void hns_roce_cleanup_hem_table(struct hns_roce_dev *hr_dev, + struct hns_roce_hem_table *table) +{ + struct device *dev = &hr_dev->pdev->dev; + unsigned long i; + + for (i = 0; i < table->num_hem; ++i) + if (table->hem[i]) { + if (hns_roce_clear_hem(hr_dev, table, + i * HNS_ROCE_TABLE_CHUNK_SIZE / table->obj_size)) + dev_err(dev, "Clear HEM base address failed.\n"); + + hns_roce_free_hem(hr_dev, table->hem[i]); + } + + kfree(table->hem); +} + +void hns_roce_cleanup_hem(struct hns_roce_dev *hr_dev) +{ + hns_roce_cleanup_hem_table(hr_dev, &hr_dev->cq_table.table); + hns_roce_cleanup_hem_table(hr_dev, &hr_dev->qp_table.irrl_table); + hns_roce_cleanup_hem_table(hr_dev, &hr_dev->qp_table.qp_table); + hns_roce_cleanup_hem_table(hr_dev, &hr_dev->mr_table.mtpt_table); + hns_roce_cleanup_hem_table(hr_dev, &hr_dev->mr_table.mtt_table); +} diff --git a/drivers/infiniband/hw/hns/hns_roce_hem.h b/drivers/infiniband/hw/hns/hns_roce_hem.h new file mode 100644 index 000000000000..ad6617588fba --- /dev/null +++ b/drivers/infiniband/hw/hns/hns_roce_hem.h @@ -0,0 +1,131 @@ +/* + * Copyright (c) 2016 Hisilicon Limited. + * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef _HNS_ROCE_HEM_H +#define _HNS_ROCE_HEM_H + +enum { + /* MAP HEM(Hardware Entry Memory) */ + HEM_TYPE_QPC = 0, + HEM_TYPE_MTPT, + HEM_TYPE_CQC, + HEM_TYPE_SRQC, + + /* UNMAP HEM */ + HEM_TYPE_MTT, + HEM_TYPE_IRRL, +}; + +#define HNS_ROCE_HEM_CHUNK_LEN \ + ((256 - sizeof(struct list_head) - 2 * sizeof(int)) / \ + (sizeof(struct scatterlist))) + +enum { + HNS_ROCE_HEM_PAGE_SHIFT = 12, + HNS_ROCE_HEM_PAGE_SIZE = 1 << HNS_ROCE_HEM_PAGE_SHIFT, +}; + +struct hns_roce_hem_chunk { + struct list_head list; + int npages; + int nsg; + struct scatterlist mem[HNS_ROCE_HEM_CHUNK_LEN]; +}; + +struct hns_roce_hem { + struct list_head chunk_list; + int refcount; +}; + +struct hns_roce_hem_iter { + struct hns_roce_hem *hem; + struct hns_roce_hem_chunk *chunk; + int page_idx; +}; + +void hns_roce_free_hem(struct hns_roce_dev *hr_dev, struct hns_roce_hem *hem); +int hns_roce_table_get(struct hns_roce_dev *hr_dev, + struct hns_roce_hem_table *table, unsigned long obj); +void hns_roce_table_put(struct hns_roce_dev *hr_dev, + struct hns_roce_hem_table *table, unsigned long obj); +void *hns_roce_table_find(struct hns_roce_hem_table *table, unsigned long obj, + dma_addr_t *dma_handle); +int hns_roce_table_get_range(struct hns_roce_dev *hr_dev, + struct hns_roce_hem_table *table, + unsigned long start, unsigned long end); +void hns_roce_table_put_range(struct hns_roce_dev *hr_dev, + struct hns_roce_hem_table *table, + unsigned long start, unsigned long end); +int hns_roce_init_hem_table(struct hns_roce_dev *hr_dev, + struct hns_roce_hem_table *table, u32 type, + unsigned long obj_size, unsigned long nobj, + int use_lowmem); +void hns_roce_cleanup_hem_table(struct hns_roce_dev *hr_dev, + struct hns_roce_hem_table *table); +void hns_roce_cleanup_hem(struct hns_roce_dev *hr_dev); + +static inline void hns_roce_hem_first(struct hns_roce_hem *hem, + struct hns_roce_hem_iter *iter) +{ + iter->hem = hem; + iter->chunk = list_empty(&hem->chunk_list) ? NULL : + list_entry(hem->chunk_list.next, + struct hns_roce_hem_chunk, list); + iter->page_idx = 0; +} + +static inline int hns_roce_hem_last(struct hns_roce_hem_iter *iter) +{ + return !iter->chunk; +} + +static inline void hns_roce_hem_next(struct hns_roce_hem_iter *iter) +{ + if (++iter->page_idx >= iter->chunk->nsg) { + if (iter->chunk->list.next == &iter->hem->chunk_list) { + iter->chunk = NULL; + return; + } + + iter->chunk = list_entry(iter->chunk->list.next, + struct hns_roce_hem_chunk, list); + iter->page_idx = 0; + } +} + +static inline dma_addr_t hns_roce_hem_addr(struct hns_roce_hem_iter *iter) +{ + return sg_dma_address(&iter->chunk->mem[iter->page_idx]); +} + +#endif /*_HNS_ROCE_HEM_H*/ diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c new file mode 100644 index 000000000000..b52f3badf855 --- /dev/null +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c @@ -0,0 +1,2781 @@ +/* + * Copyright (c) 2016 Hisilicon Limited. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/platform_device.h> +#include <rdma/ib_umem.h> +#include "hns_roce_common.h" +#include "hns_roce_device.h" +#include "hns_roce_cmd.h" +#include "hns_roce_hem.h" +#include "hns_roce_hw_v1.h" + +static void set_data_seg(struct hns_roce_wqe_data_seg *dseg, struct ib_sge *sg) +{ + dseg->lkey = cpu_to_le32(sg->lkey); + dseg->addr = cpu_to_le64(sg->addr); + dseg->len = cpu_to_le32(sg->length); +} + +static void set_raddr_seg(struct hns_roce_wqe_raddr_seg *rseg, u64 remote_addr, + u32 rkey) +{ + rseg->raddr = cpu_to_le64(remote_addr); + rseg->rkey = cpu_to_le32(rkey); + rseg->len = 0; +} + +int hns_roce_v1_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, + struct ib_send_wr **bad_wr) +{ + struct hns_roce_dev *hr_dev = to_hr_dev(ibqp->device); + struct hns_roce_ah *ah = to_hr_ah(ud_wr(wr)->ah); + struct hns_roce_ud_send_wqe *ud_sq_wqe = NULL; + struct hns_roce_wqe_ctrl_seg *ctrl = NULL; + struct hns_roce_wqe_data_seg *dseg = NULL; + struct hns_roce_qp *qp = to_hr_qp(ibqp); + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_sq_db sq_db; + int ps_opcode = 0, i = 0; + unsigned long flags = 0; + void *wqe = NULL; + u32 doorbell[2]; + int nreq = 0; + u32 ind = 0; + int ret = 0; + + spin_lock_irqsave(&qp->sq.lock, flags); + + ind = qp->sq_next_wqe; + for (nreq = 0; wr; ++nreq, wr = wr->next) { + if (hns_roce_wq_overflow(&qp->sq, nreq, qp->ibqp.send_cq)) { + ret = -ENOMEM; + *bad_wr = wr; + goto out; + } + + if (unlikely(wr->num_sge > qp->sq.max_gs)) { + dev_err(dev, "num_sge=%d > qp->sq.max_gs=%d\n", + wr->num_sge, qp->sq.max_gs); + ret = -EINVAL; + *bad_wr = wr; + goto out; + } + + wqe = get_send_wqe(qp, ind & (qp->sq.wqe_cnt - 1)); + qp->sq.wrid[(qp->sq.head + nreq) & (qp->sq.wqe_cnt - 1)] = + wr->wr_id; + + /* Corresponding to the RC and RD type wqe process separately */ + if (ibqp->qp_type == IB_QPT_GSI) { + ud_sq_wqe = wqe; + roce_set_field(ud_sq_wqe->dmac_h, + UD_SEND_WQE_U32_4_DMAC_0_M, + UD_SEND_WQE_U32_4_DMAC_0_S, + ah->av.mac[0]); + roce_set_field(ud_sq_wqe->dmac_h, + UD_SEND_WQE_U32_4_DMAC_1_M, + UD_SEND_WQE_U32_4_DMAC_1_S, + ah->av.mac[1]); + roce_set_field(ud_sq_wqe->dmac_h, + UD_SEND_WQE_U32_4_DMAC_2_M, + UD_SEND_WQE_U32_4_DMAC_2_S, + ah->av.mac[2]); + roce_set_field(ud_sq_wqe->dmac_h, + UD_SEND_WQE_U32_4_DMAC_3_M, + UD_SEND_WQE_U32_4_DMAC_3_S, + ah->av.mac[3]); + + roce_set_field(ud_sq_wqe->u32_8, + UD_SEND_WQE_U32_8_DMAC_4_M, + UD_SEND_WQE_U32_8_DMAC_4_S, + ah->av.mac[4]); + roce_set_field(ud_sq_wqe->u32_8, + UD_SEND_WQE_U32_8_DMAC_5_M, + UD_SEND_WQE_U32_8_DMAC_5_S, + ah->av.mac[5]); + roce_set_field(ud_sq_wqe->u32_8, + UD_SEND_WQE_U32_8_OPERATION_TYPE_M, + UD_SEND_WQE_U32_8_OPERATION_TYPE_S, + HNS_ROCE_WQE_OPCODE_SEND); + roce_set_field(ud_sq_wqe->u32_8, + UD_SEND_WQE_U32_8_NUMBER_OF_DATA_SEG_M, + UD_SEND_WQE_U32_8_NUMBER_OF_DATA_SEG_S, + 2); + roce_set_bit(ud_sq_wqe->u32_8, + UD_SEND_WQE_U32_8_SEND_GL_ROUTING_HDR_FLAG_S, + 1); + + ud_sq_wqe->u32_8 |= (wr->send_flags & IB_SEND_SIGNALED ? + cpu_to_le32(HNS_ROCE_WQE_CQ_NOTIFY) : 0) | + (wr->send_flags & IB_SEND_SOLICITED ? + cpu_to_le32(HNS_ROCE_WQE_SE) : 0) | + ((wr->opcode == IB_WR_SEND_WITH_IMM) ? + cpu_to_le32(HNS_ROCE_WQE_IMM) : 0); + + roce_set_field(ud_sq_wqe->u32_16, + UD_SEND_WQE_U32_16_DEST_QP_M, + UD_SEND_WQE_U32_16_DEST_QP_S, + ud_wr(wr)->remote_qpn); + roce_set_field(ud_sq_wqe->u32_16, + UD_SEND_WQE_U32_16_MAX_STATIC_RATE_M, + UD_SEND_WQE_U32_16_MAX_STATIC_RATE_S, + ah->av.stat_rate); + + roce_set_field(ud_sq_wqe->u32_36, + UD_SEND_WQE_U32_36_FLOW_LABEL_M, + UD_SEND_WQE_U32_36_FLOW_LABEL_S, 0); + roce_set_field(ud_sq_wqe->u32_36, + UD_SEND_WQE_U32_36_PRIORITY_M, + UD_SEND_WQE_U32_36_PRIORITY_S, + ah->av.sl_tclass_flowlabel >> + HNS_ROCE_SL_SHIFT); + roce_set_field(ud_sq_wqe->u32_36, + UD_SEND_WQE_U32_36_SGID_INDEX_M, + UD_SEND_WQE_U32_36_SGID_INDEX_S, + hns_get_gid_index(hr_dev, qp->port, + ah->av.gid_index)); + + roce_set_field(ud_sq_wqe->u32_40, + UD_SEND_WQE_U32_40_HOP_LIMIT_M, + UD_SEND_WQE_U32_40_HOP_LIMIT_S, + ah->av.hop_limit); + roce_set_field(ud_sq_wqe->u32_40, + UD_SEND_WQE_U32_40_TRAFFIC_CLASS_M, + UD_SEND_WQE_U32_40_TRAFFIC_CLASS_S, 0); + + memcpy(&ud_sq_wqe->dgid[0], &ah->av.dgid[0], GID_LEN); + + ud_sq_wqe->va0_l = (u32)wr->sg_list[0].addr; + ud_sq_wqe->va0_h = (wr->sg_list[0].addr) >> 32; + ud_sq_wqe->l_key0 = wr->sg_list[0].lkey; + + ud_sq_wqe->va1_l = (u32)wr->sg_list[1].addr; + ud_sq_wqe->va1_h = (wr->sg_list[1].addr) >> 32; + ud_sq_wqe->l_key1 = wr->sg_list[1].lkey; + ind++; + } else if (ibqp->qp_type == IB_QPT_RC) { + ctrl = wqe; + memset(ctrl, 0, sizeof(struct hns_roce_wqe_ctrl_seg)); + for (i = 0; i < wr->num_sge; i++) + ctrl->msg_length += wr->sg_list[i].length; + + ctrl->sgl_pa_h = 0; + ctrl->flag = 0; + ctrl->imm_data = send_ieth(wr); + + /*Ctrl field, ctrl set type: sig, solic, imm, fence */ + /* SO wait for conforming application scenarios */ + ctrl->flag |= (wr->send_flags & IB_SEND_SIGNALED ? + cpu_to_le32(HNS_ROCE_WQE_CQ_NOTIFY) : 0) | + (wr->send_flags & IB_SEND_SOLICITED ? + cpu_to_le32(HNS_ROCE_WQE_SE) : 0) | + ((wr->opcode == IB_WR_SEND_WITH_IMM || + wr->opcode == IB_WR_RDMA_WRITE_WITH_IMM) ? + cpu_to_le32(HNS_ROCE_WQE_IMM) : 0) | + (wr->send_flags & IB_SEND_FENCE ? + (cpu_to_le32(HNS_ROCE_WQE_FENCE)) : 0); + + wqe = (struct hns_roce_wqe_ctrl_seg *)wqe + + sizeof(struct hns_roce_wqe_ctrl_seg); + + switch (wr->opcode) { + case IB_WR_RDMA_READ: + ps_opcode = HNS_ROCE_WQE_OPCODE_RDMA_READ; + set_raddr_seg(wqe, atomic_wr(wr)->remote_addr, + atomic_wr(wr)->rkey); + break; + case IB_WR_RDMA_WRITE: + case IB_WR_RDMA_WRITE_WITH_IMM: + ps_opcode = HNS_ROCE_WQE_OPCODE_RDMA_WRITE; + set_raddr_seg(wqe, atomic_wr(wr)->remote_addr, + atomic_wr(wr)->rkey); + break; + case IB_WR_SEND: + case IB_WR_SEND_WITH_INV: + case IB_WR_SEND_WITH_IMM: + ps_opcode = HNS_ROCE_WQE_OPCODE_SEND; + break; + case IB_WR_LOCAL_INV: + break; + case IB_WR_ATOMIC_CMP_AND_SWP: + case IB_WR_ATOMIC_FETCH_AND_ADD: + case IB_WR_LSO: + default: + ps_opcode = HNS_ROCE_WQE_OPCODE_MASK; + break; + } + ctrl->flag |= cpu_to_le32(ps_opcode); + wqe = (struct hns_roce_wqe_raddr_seg *)wqe + + sizeof(struct hns_roce_wqe_raddr_seg); + + dseg = wqe; + if (wr->send_flags & IB_SEND_INLINE && wr->num_sge) { + if (ctrl->msg_length > + hr_dev->caps.max_sq_inline) { + ret = -EINVAL; + *bad_wr = wr; + dev_err(dev, "inline len(1-%d)=%d, illegal", + ctrl->msg_length, + hr_dev->caps.max_sq_inline); + goto out; + } + for (i = 0; i < wr->num_sge; i++) { + memcpy(wqe, ((void *) (uintptr_t) + wr->sg_list[i].addr), + wr->sg_list[i].length); + wqe = (struct hns_roce_wqe_raddr_seg *) + wqe + wr->sg_list[i].length; + } + ctrl->flag |= HNS_ROCE_WQE_INLINE; + } else { + /*sqe num is two */ + for (i = 0; i < wr->num_sge; i++) + set_data_seg(dseg + i, wr->sg_list + i); + + ctrl->flag |= cpu_to_le32(wr->num_sge << + HNS_ROCE_WQE_SGE_NUM_BIT); + } + ind++; + } else { + dev_dbg(dev, "unSupported QP type\n"); + break; + } + } + +out: + /* Set DB return */ + if (likely(nreq)) { + qp->sq.head += nreq; + /* Memory barrier */ + wmb(); + + sq_db.u32_4 = 0; + sq_db.u32_8 = 0; + roce_set_field(sq_db.u32_4, SQ_DOORBELL_U32_4_SQ_HEAD_M, + SQ_DOORBELL_U32_4_SQ_HEAD_S, + (qp->sq.head & ((qp->sq.wqe_cnt << 1) - 1))); + roce_set_field(sq_db.u32_4, SQ_DOORBELL_U32_4_PORT_M, + SQ_DOORBELL_U32_4_PORT_S, qp->port); + roce_set_field(sq_db.u32_8, SQ_DOORBELL_U32_8_QPN_M, + SQ_DOORBELL_U32_8_QPN_S, qp->doorbell_qpn); + roce_set_bit(sq_db.u32_8, SQ_DOORBELL_HW_SYNC_S, 1); + + doorbell[0] = sq_db.u32_4; + doorbell[1] = sq_db.u32_8; + + hns_roce_write64_k(doorbell, qp->sq.db_reg_l); + qp->sq_next_wqe = ind; + } + + spin_unlock_irqrestore(&qp->sq.lock, flags); + + return ret; +} + +int hns_roce_v1_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr, + struct ib_recv_wr **bad_wr) +{ + int ret = 0; + int nreq = 0; + int ind = 0; + int i = 0; + u32 reg_val = 0; + unsigned long flags = 0; + struct hns_roce_rq_wqe_ctrl *ctrl = NULL; + struct hns_roce_wqe_data_seg *scat = NULL; + struct hns_roce_qp *hr_qp = to_hr_qp(ibqp); + struct hns_roce_dev *hr_dev = to_hr_dev(ibqp->device); + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_rq_db rq_db; + uint32_t doorbell[2] = {0}; + + spin_lock_irqsave(&hr_qp->rq.lock, flags); + ind = hr_qp->rq.head & (hr_qp->rq.wqe_cnt - 1); + + for (nreq = 0; wr; ++nreq, wr = wr->next) { + if (hns_roce_wq_overflow(&hr_qp->rq, nreq, + hr_qp->ibqp.recv_cq)) { + ret = -ENOMEM; + *bad_wr = wr; + goto out; + } + + if (unlikely(wr->num_sge > hr_qp->rq.max_gs)) { + dev_err(dev, "rq:num_sge=%d > qp->sq.max_gs=%d\n", + wr->num_sge, hr_qp->rq.max_gs); + ret = -EINVAL; + *bad_wr = wr; + goto out; + } + + ctrl = get_recv_wqe(hr_qp, ind); + + roce_set_field(ctrl->rwqe_byte_12, + RQ_WQE_CTRL_RWQE_BYTE_12_RWQE_SGE_NUM_M, + RQ_WQE_CTRL_RWQE_BYTE_12_RWQE_SGE_NUM_S, + wr->num_sge); + + scat = (struct hns_roce_wqe_data_seg *)(ctrl + 1); + + for (i = 0; i < wr->num_sge; i++) + set_data_seg(scat + i, wr->sg_list + i); + + hr_qp->rq.wrid[ind] = wr->wr_id; + + ind = (ind + 1) & (hr_qp->rq.wqe_cnt - 1); + } + +out: + if (likely(nreq)) { + hr_qp->rq.head += nreq; + /* Memory barrier */ + wmb(); + + if (ibqp->qp_type == IB_QPT_GSI) { + /* SW update GSI rq header */ + reg_val = roce_read(to_hr_dev(ibqp->device), + ROCEE_QP1C_CFG3_0_REG + + QP1C_CFGN_OFFSET * hr_qp->port); + roce_set_field(reg_val, + ROCEE_QP1C_CFG3_0_ROCEE_QP1C_RQ_HEAD_M, + ROCEE_QP1C_CFG3_0_ROCEE_QP1C_RQ_HEAD_S, + hr_qp->rq.head); + roce_write(to_hr_dev(ibqp->device), + ROCEE_QP1C_CFG3_0_REG + + QP1C_CFGN_OFFSET * hr_qp->port, reg_val); + } else { + rq_db.u32_4 = 0; + rq_db.u32_8 = 0; + + roce_set_field(rq_db.u32_4, RQ_DOORBELL_U32_4_RQ_HEAD_M, + RQ_DOORBELL_U32_4_RQ_HEAD_S, + hr_qp->rq.head); + roce_set_field(rq_db.u32_8, RQ_DOORBELL_U32_8_QPN_M, + RQ_DOORBELL_U32_8_QPN_S, hr_qp->qpn); + roce_set_field(rq_db.u32_8, RQ_DOORBELL_U32_8_CMD_M, + RQ_DOORBELL_U32_8_CMD_S, 1); + roce_set_bit(rq_db.u32_8, RQ_DOORBELL_U32_8_HW_SYNC_S, + 1); + + doorbell[0] = rq_db.u32_4; + doorbell[1] = rq_db.u32_8; + + hns_roce_write64_k(doorbell, hr_qp->rq.db_reg_l); + } + } + spin_unlock_irqrestore(&hr_qp->rq.lock, flags); + + return ret; +} + +static void hns_roce_set_db_event_mode(struct hns_roce_dev *hr_dev, + int sdb_mode, int odb_mode) +{ + u32 val; + + val = roce_read(hr_dev, ROCEE_GLB_CFG_REG); + roce_set_bit(val, ROCEE_GLB_CFG_ROCEE_DB_SQ_MODE_S, sdb_mode); + roce_set_bit(val, ROCEE_GLB_CFG_ROCEE_DB_OTH_MODE_S, odb_mode); + roce_write(hr_dev, ROCEE_GLB_CFG_REG, val); +} + +static void hns_roce_set_db_ext_mode(struct hns_roce_dev *hr_dev, u32 sdb_mode, + u32 odb_mode) +{ + u32 val; + + /* Configure SDB/ODB extend mode */ + val = roce_read(hr_dev, ROCEE_GLB_CFG_REG); + roce_set_bit(val, ROCEE_GLB_CFG_SQ_EXT_DB_MODE_S, sdb_mode); + roce_set_bit(val, ROCEE_GLB_CFG_OTH_EXT_DB_MODE_S, odb_mode); + roce_write(hr_dev, ROCEE_GLB_CFG_REG, val); +} + +static void hns_roce_set_sdb(struct hns_roce_dev *hr_dev, u32 sdb_alept, + u32 sdb_alful) +{ + u32 val; + + /* Configure SDB */ + val = roce_read(hr_dev, ROCEE_DB_SQ_WL_REG); + roce_set_field(val, ROCEE_DB_SQ_WL_ROCEE_DB_SQ_WL_M, + ROCEE_DB_SQ_WL_ROCEE_DB_SQ_WL_S, sdb_alful); + roce_set_field(val, ROCEE_DB_SQ_WL_ROCEE_DB_SQ_WL_EMPTY_M, + ROCEE_DB_SQ_WL_ROCEE_DB_SQ_WL_EMPTY_S, sdb_alept); + roce_write(hr_dev, ROCEE_DB_SQ_WL_REG, val); +} + +static void hns_roce_set_odb(struct hns_roce_dev *hr_dev, u32 odb_alept, + u32 odb_alful) +{ + u32 val; + + /* Configure ODB */ + val = roce_read(hr_dev, ROCEE_DB_OTHERS_WL_REG); + roce_set_field(val, ROCEE_DB_OTHERS_WL_ROCEE_DB_OTH_WL_M, + ROCEE_DB_OTHERS_WL_ROCEE_DB_OTH_WL_S, odb_alful); + roce_set_field(val, ROCEE_DB_OTHERS_WL_ROCEE_DB_OTH_WL_EMPTY_M, + ROCEE_DB_OTHERS_WL_ROCEE_DB_OTH_WL_EMPTY_S, odb_alept); + roce_write(hr_dev, ROCEE_DB_OTHERS_WL_REG, val); +} + +static void hns_roce_set_sdb_ext(struct hns_roce_dev *hr_dev, u32 ext_sdb_alept, + u32 ext_sdb_alful) +{ + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_v1_priv *priv; + struct hns_roce_db_table *db; + dma_addr_t sdb_dma_addr; + u32 val; + + priv = (struct hns_roce_v1_priv *)hr_dev->hw->priv; + db = &priv->db_table; + + /* Configure extend SDB threshold */ + roce_write(hr_dev, ROCEE_EXT_DB_SQ_WL_EMPTY_REG, ext_sdb_alept); + roce_write(hr_dev, ROCEE_EXT_DB_SQ_WL_REG, ext_sdb_alful); + + /* Configure extend SDB base addr */ + sdb_dma_addr = db->ext_db->sdb_buf_list->map; + roce_write(hr_dev, ROCEE_EXT_DB_SQ_REG, (u32)(sdb_dma_addr >> 12)); + + /* Configure extend SDB depth */ + val = roce_read(hr_dev, ROCEE_EXT_DB_SQ_H_REG); + roce_set_field(val, ROCEE_EXT_DB_SQ_H_EXT_DB_SQ_SHIFT_M, + ROCEE_EXT_DB_SQ_H_EXT_DB_SQ_SHIFT_S, + db->ext_db->esdb_dep); + /* + * 44 = 32 + 12, When evaluating addr to hardware, shift 12 because of + * using 4K page, and shift more 32 because of + * caculating the high 32 bit value evaluated to hardware. + */ + roce_set_field(val, ROCEE_EXT_DB_SQ_H_EXT_DB_SQ_BA_H_M, + ROCEE_EXT_DB_SQ_H_EXT_DB_SQ_BA_H_S, sdb_dma_addr >> 44); + roce_write(hr_dev, ROCEE_EXT_DB_SQ_H_REG, val); + + dev_dbg(dev, "ext SDB depth: 0x%x\n", db->ext_db->esdb_dep); + dev_dbg(dev, "ext SDB threshold: epmty: 0x%x, ful: 0x%x\n", + ext_sdb_alept, ext_sdb_alful); +} + +static void hns_roce_set_odb_ext(struct hns_roce_dev *hr_dev, u32 ext_odb_alept, + u32 ext_odb_alful) +{ + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_v1_priv *priv; + struct hns_roce_db_table *db; + dma_addr_t odb_dma_addr; + u32 val; + + priv = (struct hns_roce_v1_priv *)hr_dev->hw->priv; + db = &priv->db_table; + + /* Configure extend ODB threshold */ + roce_write(hr_dev, ROCEE_EXT_DB_OTHERS_WL_EMPTY_REG, ext_odb_alept); + roce_write(hr_dev, ROCEE_EXT_DB_OTHERS_WL_REG, ext_odb_alful); + + /* Configure extend ODB base addr */ + odb_dma_addr = db->ext_db->odb_buf_list->map; + roce_write(hr_dev, ROCEE_EXT_DB_OTH_REG, (u32)(odb_dma_addr >> 12)); + + /* Configure extend ODB depth */ + val = roce_read(hr_dev, ROCEE_EXT_DB_OTH_H_REG); + roce_set_field(val, ROCEE_EXT_DB_OTH_H_EXT_DB_OTH_SHIFT_M, + ROCEE_EXT_DB_OTH_H_EXT_DB_OTH_SHIFT_S, + db->ext_db->eodb_dep); + roce_set_field(val, ROCEE_EXT_DB_SQ_H_EXT_DB_OTH_BA_H_M, + ROCEE_EXT_DB_SQ_H_EXT_DB_OTH_BA_H_S, + db->ext_db->eodb_dep); + roce_write(hr_dev, ROCEE_EXT_DB_OTH_H_REG, val); + + dev_dbg(dev, "ext ODB depth: 0x%x\n", db->ext_db->eodb_dep); + dev_dbg(dev, "ext ODB threshold: empty: 0x%x, ful: 0x%x\n", + ext_odb_alept, ext_odb_alful); +} + +static int hns_roce_db_ext_init(struct hns_roce_dev *hr_dev, u32 sdb_ext_mod, + u32 odb_ext_mod) +{ + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_v1_priv *priv; + struct hns_roce_db_table *db; + dma_addr_t sdb_dma_addr; + dma_addr_t odb_dma_addr; + int ret = 0; + + priv = (struct hns_roce_v1_priv *)hr_dev->hw->priv; + db = &priv->db_table; + + db->ext_db = kmalloc(sizeof(*db->ext_db), GFP_KERNEL); + if (!db->ext_db) + return -ENOMEM; + + if (sdb_ext_mod) { + db->ext_db->sdb_buf_list = kmalloc( + sizeof(*db->ext_db->sdb_buf_list), GFP_KERNEL); + if (!db->ext_db->sdb_buf_list) { + ret = -ENOMEM; + goto ext_sdb_buf_fail_out; + } + + db->ext_db->sdb_buf_list->buf = dma_alloc_coherent(dev, + HNS_ROCE_V1_EXT_SDB_SIZE, + &sdb_dma_addr, GFP_KERNEL); + if (!db->ext_db->sdb_buf_list->buf) { + ret = -ENOMEM; + goto alloc_sq_db_buf_fail; + } + db->ext_db->sdb_buf_list->map = sdb_dma_addr; + + db->ext_db->esdb_dep = ilog2(HNS_ROCE_V1_EXT_SDB_DEPTH); + hns_roce_set_sdb_ext(hr_dev, HNS_ROCE_V1_EXT_SDB_ALEPT, + HNS_ROCE_V1_EXT_SDB_ALFUL); + } else + hns_roce_set_sdb(hr_dev, HNS_ROCE_V1_SDB_ALEPT, + HNS_ROCE_V1_SDB_ALFUL); + + if (odb_ext_mod) { + db->ext_db->odb_buf_list = kmalloc( + sizeof(*db->ext_db->odb_buf_list), GFP_KERNEL); + if (!db->ext_db->odb_buf_list) { + ret = -ENOMEM; + goto ext_odb_buf_fail_out; + } + + db->ext_db->odb_buf_list->buf = dma_alloc_coherent(dev, + HNS_ROCE_V1_EXT_ODB_SIZE, + &odb_dma_addr, GFP_KERNEL); + if (!db->ext_db->odb_buf_list->buf) { + ret = -ENOMEM; + goto alloc_otr_db_buf_fail; + } + db->ext_db->odb_buf_list->map = odb_dma_addr; + + db->ext_db->eodb_dep = ilog2(HNS_ROCE_V1_EXT_ODB_DEPTH); + hns_roce_set_odb_ext(hr_dev, HNS_ROCE_V1_EXT_ODB_ALEPT, + HNS_ROCE_V1_EXT_ODB_ALFUL); + } else + hns_roce_set_odb(hr_dev, HNS_ROCE_V1_ODB_ALEPT, + HNS_ROCE_V1_ODB_ALFUL); + + hns_roce_set_db_ext_mode(hr_dev, sdb_ext_mod, odb_ext_mod); + + return 0; + +alloc_otr_db_buf_fail: + kfree(db->ext_db->odb_buf_list); + +ext_odb_buf_fail_out: + if (sdb_ext_mod) { + dma_free_coherent(dev, HNS_ROCE_V1_EXT_SDB_SIZE, + db->ext_db->sdb_buf_list->buf, + db->ext_db->sdb_buf_list->map); + } + +alloc_sq_db_buf_fail: + if (sdb_ext_mod) + kfree(db->ext_db->sdb_buf_list); + +ext_sdb_buf_fail_out: + kfree(db->ext_db); + return ret; +} + +static int hns_roce_db_init(struct hns_roce_dev *hr_dev) +{ + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_v1_priv *priv; + struct hns_roce_db_table *db; + u32 sdb_ext_mod; + u32 odb_ext_mod; + u32 sdb_evt_mod; + u32 odb_evt_mod; + int ret = 0; + + priv = (struct hns_roce_v1_priv *)hr_dev->hw->priv; + db = &priv->db_table; + + memset(db, 0, sizeof(*db)); + + /* Default DB mode */ + sdb_ext_mod = HNS_ROCE_SDB_EXTEND_MODE; + odb_ext_mod = HNS_ROCE_ODB_EXTEND_MODE; + sdb_evt_mod = HNS_ROCE_SDB_NORMAL_MODE; + odb_evt_mod = HNS_ROCE_ODB_POLL_MODE; + + db->sdb_ext_mod = sdb_ext_mod; + db->odb_ext_mod = odb_ext_mod; + + /* Init extend DB */ + ret = hns_roce_db_ext_init(hr_dev, sdb_ext_mod, odb_ext_mod); + if (ret) { + dev_err(dev, "Failed in extend DB configuration.\n"); + return ret; + } + + hns_roce_set_db_event_mode(hr_dev, sdb_evt_mod, odb_evt_mod); + + return 0; +} + +static void hns_roce_db_free(struct hns_roce_dev *hr_dev) +{ + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_v1_priv *priv; + struct hns_roce_db_table *db; + + priv = (struct hns_roce_v1_priv *)hr_dev->hw->priv; + db = &priv->db_table; + + if (db->sdb_ext_mod) { + dma_free_coherent(dev, HNS_ROCE_V1_EXT_SDB_SIZE, + db->ext_db->sdb_buf_list->buf, + db->ext_db->sdb_buf_list->map); + kfree(db->ext_db->sdb_buf_list); + } + + if (db->odb_ext_mod) { + dma_free_coherent(dev, HNS_ROCE_V1_EXT_ODB_SIZE, + db->ext_db->odb_buf_list->buf, + db->ext_db->odb_buf_list->map); + kfree(db->ext_db->odb_buf_list); + } + + kfree(db->ext_db); +} + +static int hns_roce_raq_init(struct hns_roce_dev *hr_dev) +{ + int ret; + int raq_shift = 0; + dma_addr_t addr; + u32 val; + struct hns_roce_v1_priv *priv; + struct hns_roce_raq_table *raq; + struct device *dev = &hr_dev->pdev->dev; + + priv = (struct hns_roce_v1_priv *)hr_dev->hw->priv; + raq = &priv->raq_table; + + raq->e_raq_buf = kzalloc(sizeof(*(raq->e_raq_buf)), GFP_KERNEL); + if (!raq->e_raq_buf) + return -ENOMEM; + + raq->e_raq_buf->buf = dma_alloc_coherent(dev, HNS_ROCE_V1_RAQ_SIZE, + &addr, GFP_KERNEL); + if (!raq->e_raq_buf->buf) { + ret = -ENOMEM; + goto err_dma_alloc_raq; + } + raq->e_raq_buf->map = addr; + + /* Configure raq extended address. 48bit 4K align*/ + roce_write(hr_dev, ROCEE_EXT_RAQ_REG, raq->e_raq_buf->map >> 12); + + /* Configure raq_shift */ + raq_shift = ilog2(HNS_ROCE_V1_RAQ_SIZE / HNS_ROCE_V1_RAQ_ENTRY); + val = roce_read(hr_dev, ROCEE_EXT_RAQ_H_REG); + roce_set_field(val, ROCEE_EXT_RAQ_H_EXT_RAQ_SHIFT_M, + ROCEE_EXT_RAQ_H_EXT_RAQ_SHIFT_S, raq_shift); + /* + * 44 = 32 + 12, When evaluating addr to hardware, shift 12 because of + * using 4K page, and shift more 32 because of + * caculating the high 32 bit value evaluated to hardware. + */ + roce_set_field(val, ROCEE_EXT_RAQ_H_EXT_RAQ_BA_H_M, + ROCEE_EXT_RAQ_H_EXT_RAQ_BA_H_S, + raq->e_raq_buf->map >> 44); + roce_write(hr_dev, ROCEE_EXT_RAQ_H_REG, val); + dev_dbg(dev, "Configure raq_shift 0x%x.\n", val); + + /* Configure raq threshold */ + val = roce_read(hr_dev, ROCEE_RAQ_WL_REG); + roce_set_field(val, ROCEE_RAQ_WL_ROCEE_RAQ_WL_M, + ROCEE_RAQ_WL_ROCEE_RAQ_WL_S, + HNS_ROCE_V1_EXT_RAQ_WF); + roce_write(hr_dev, ROCEE_RAQ_WL_REG, val); + dev_dbg(dev, "Configure raq_wl 0x%x.\n", val); + + /* Enable extend raq */ + val = roce_read(hr_dev, ROCEE_WRMS_POL_TIME_INTERVAL_REG); + roce_set_field(val, + ROCEE_WRMS_POL_TIME_INTERVAL_WRMS_POL_TIME_INTERVAL_M, + ROCEE_WRMS_POL_TIME_INTERVAL_WRMS_POL_TIME_INTERVAL_S, + POL_TIME_INTERVAL_VAL); + roce_set_bit(val, ROCEE_WRMS_POL_TIME_INTERVAL_WRMS_EXT_RAQ_MODE, 1); + roce_set_field(val, + ROCEE_WRMS_POL_TIME_INTERVAL_WRMS_RAQ_TIMEOUT_CHK_CFG_M, + ROCEE_WRMS_POL_TIME_INTERVAL_WRMS_RAQ_TIMEOUT_CHK_CFG_S, + 2); + roce_set_bit(val, + ROCEE_WRMS_POL_TIME_INTERVAL_WRMS_RAQ_TIMEOUT_CHK_EN_S, 1); + roce_write(hr_dev, ROCEE_WRMS_POL_TIME_INTERVAL_REG, val); + dev_dbg(dev, "Configure WrmsPolTimeInterval 0x%x.\n", val); + + /* Enable raq drop */ + val = roce_read(hr_dev, ROCEE_GLB_CFG_REG); + roce_set_bit(val, ROCEE_GLB_CFG_TRP_RAQ_DROP_EN_S, 1); + roce_write(hr_dev, ROCEE_GLB_CFG_REG, val); + dev_dbg(dev, "Configure GlbCfg = 0x%x.\n", val); + + return 0; + +err_dma_alloc_raq: + kfree(raq->e_raq_buf); + return ret; +} + +static void hns_roce_raq_free(struct hns_roce_dev *hr_dev) +{ + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_v1_priv *priv; + struct hns_roce_raq_table *raq; + + priv = (struct hns_roce_v1_priv *)hr_dev->hw->priv; + raq = &priv->raq_table; + + dma_free_coherent(dev, HNS_ROCE_V1_RAQ_SIZE, raq->e_raq_buf->buf, + raq->e_raq_buf->map); + kfree(raq->e_raq_buf); +} + +static void hns_roce_port_enable(struct hns_roce_dev *hr_dev, int enable_flag) +{ + u32 val; + + if (enable_flag) { + val = roce_read(hr_dev, ROCEE_GLB_CFG_REG); + /* Open all ports */ + roce_set_field(val, ROCEE_GLB_CFG_ROCEE_PORT_ST_M, + ROCEE_GLB_CFG_ROCEE_PORT_ST_S, + ALL_PORT_VAL_OPEN); + roce_write(hr_dev, ROCEE_GLB_CFG_REG, val); + } else { + val = roce_read(hr_dev, ROCEE_GLB_CFG_REG); + /* Close all ports */ + roce_set_field(val, ROCEE_GLB_CFG_ROCEE_PORT_ST_M, + ROCEE_GLB_CFG_ROCEE_PORT_ST_S, 0x0); + roce_write(hr_dev, ROCEE_GLB_CFG_REG, val); + } +} + +/** + * hns_roce_v1_reset - reset RoCE + * @hr_dev: RoCE device struct pointer + * @enable: true -- drop reset, false -- reset + * return 0 - success , negative --fail + */ +int hns_roce_v1_reset(struct hns_roce_dev *hr_dev, bool enable) +{ + struct device_node *dsaf_node; + struct device *dev = &hr_dev->pdev->dev; + struct device_node *np = dev->of_node; + int ret; + + dsaf_node = of_parse_phandle(np, "dsaf-handle", 0); + if (!dsaf_node) { + dev_err(dev, "Unable to get dsaf node by dsaf-handle!\n"); + return -EINVAL; + } + + ret = hns_dsaf_roce_reset(&dsaf_node->fwnode, false); + if (ret) + return ret; + + if (enable) { + msleep(SLEEP_TIME_INTERVAL); + return hns_dsaf_roce_reset(&dsaf_node->fwnode, true); + } + + return 0; +} + +void hns_roce_v1_profile(struct hns_roce_dev *hr_dev) +{ + int i = 0; + struct hns_roce_caps *caps = &hr_dev->caps; + + hr_dev->vendor_id = le32_to_cpu(roce_read(hr_dev, ROCEE_VENDOR_ID_REG)); + hr_dev->vendor_part_id = le32_to_cpu(roce_read(hr_dev, + ROCEE_VENDOR_PART_ID_REG)); + hr_dev->hw_rev = le32_to_cpu(roce_read(hr_dev, ROCEE_HW_VERSION_REG)); + + hr_dev->sys_image_guid = le32_to_cpu(roce_read(hr_dev, + ROCEE_SYS_IMAGE_GUID_L_REG)) | + ((u64)le32_to_cpu(roce_read(hr_dev, + ROCEE_SYS_IMAGE_GUID_H_REG)) << 32); + + caps->num_qps = HNS_ROCE_V1_MAX_QP_NUM; + caps->max_wqes = HNS_ROCE_V1_MAX_WQE_NUM; + caps->num_cqs = HNS_ROCE_V1_MAX_CQ_NUM; + caps->max_cqes = HNS_ROCE_V1_MAX_CQE_NUM; + caps->max_sq_sg = HNS_ROCE_V1_SG_NUM; + caps->max_rq_sg = HNS_ROCE_V1_SG_NUM; + caps->max_sq_inline = HNS_ROCE_V1_INLINE_SIZE; + caps->num_uars = HNS_ROCE_V1_UAR_NUM; + caps->phy_num_uars = HNS_ROCE_V1_PHY_UAR_NUM; + caps->num_aeq_vectors = HNS_ROCE_AEQE_VEC_NUM; + caps->num_comp_vectors = HNS_ROCE_COMP_VEC_NUM; + caps->num_other_vectors = HNS_ROCE_AEQE_OF_VEC_NUM; + caps->num_mtpts = HNS_ROCE_V1_MAX_MTPT_NUM; + caps->num_mtt_segs = HNS_ROCE_V1_MAX_MTT_SEGS; + caps->num_pds = HNS_ROCE_V1_MAX_PD_NUM; + caps->max_qp_init_rdma = HNS_ROCE_V1_MAX_QP_INIT_RDMA; + caps->max_qp_dest_rdma = HNS_ROCE_V1_MAX_QP_DEST_RDMA; + caps->max_sq_desc_sz = HNS_ROCE_V1_MAX_SQ_DESC_SZ; + caps->max_rq_desc_sz = HNS_ROCE_V1_MAX_RQ_DESC_SZ; + caps->qpc_entry_sz = HNS_ROCE_V1_QPC_ENTRY_SIZE; + caps->irrl_entry_sz = HNS_ROCE_V1_IRRL_ENTRY_SIZE; + caps->cqc_entry_sz = HNS_ROCE_V1_CQC_ENTRY_SIZE; + caps->mtpt_entry_sz = HNS_ROCE_V1_MTPT_ENTRY_SIZE; + caps->mtt_entry_sz = HNS_ROCE_V1_MTT_ENTRY_SIZE; + caps->cq_entry_sz = HNS_ROCE_V1_CQE_ENTRY_SIZE; + caps->page_size_cap = HNS_ROCE_V1_PAGE_SIZE_SUPPORT; + caps->sqp_start = 0; + caps->reserved_lkey = 0; + caps->reserved_pds = 0; + caps->reserved_mrws = 1; + caps->reserved_uars = 0; + caps->reserved_cqs = 0; + + for (i = 0; i < caps->num_ports; i++) + caps->pkey_table_len[i] = 1; + + for (i = 0; i < caps->num_ports; i++) { + /* Six ports shared 16 GID in v1 engine */ + if (i >= (HNS_ROCE_V1_GID_NUM % caps->num_ports)) + caps->gid_table_len[i] = HNS_ROCE_V1_GID_NUM / + caps->num_ports; + else + caps->gid_table_len[i] = HNS_ROCE_V1_GID_NUM / + caps->num_ports + 1; + } + + for (i = 0; i < caps->num_comp_vectors; i++) + caps->ceqe_depth[i] = HNS_ROCE_V1_NUM_COMP_EQE; + + caps->aeqe_depth = HNS_ROCE_V1_NUM_ASYNC_EQE; + caps->local_ca_ack_delay = le32_to_cpu(roce_read(hr_dev, + ROCEE_ACK_DELAY_REG)); + caps->max_mtu = IB_MTU_2048; +} + +int hns_roce_v1_init(struct hns_roce_dev *hr_dev) +{ + int ret; + u32 val; + struct device *dev = &hr_dev->pdev->dev; + + /* DMAE user config */ + val = roce_read(hr_dev, ROCEE_DMAE_USER_CFG1_REG); + roce_set_field(val, ROCEE_DMAE_USER_CFG1_ROCEE_CACHE_TB_CFG_M, + ROCEE_DMAE_USER_CFG1_ROCEE_CACHE_TB_CFG_S, 0xf); + roce_set_field(val, ROCEE_DMAE_USER_CFG1_ROCEE_STREAM_ID_TB_CFG_M, + ROCEE_DMAE_USER_CFG1_ROCEE_STREAM_ID_TB_CFG_S, + 1 << PAGES_SHIFT_16); + roce_write(hr_dev, ROCEE_DMAE_USER_CFG1_REG, val); + + val = roce_read(hr_dev, ROCEE_DMAE_USER_CFG2_REG); + roce_set_field(val, ROCEE_DMAE_USER_CFG2_ROCEE_CACHE_PKT_CFG_M, + ROCEE_DMAE_USER_CFG2_ROCEE_CACHE_PKT_CFG_S, 0xf); + roce_set_field(val, ROCEE_DMAE_USER_CFG2_ROCEE_STREAM_ID_PKT_CFG_M, + ROCEE_DMAE_USER_CFG2_ROCEE_STREAM_ID_PKT_CFG_S, + 1 << PAGES_SHIFT_16); + + ret = hns_roce_db_init(hr_dev); + if (ret) { + dev_err(dev, "doorbell init failed!\n"); + return ret; + } + + ret = hns_roce_raq_init(hr_dev); + if (ret) { + dev_err(dev, "raq init failed!\n"); + goto error_failed_raq_init; + } + + hns_roce_port_enable(hr_dev, HNS_ROCE_PORT_UP); + + return 0; + +error_failed_raq_init: + hns_roce_db_free(hr_dev); + return ret; +} + +void hns_roce_v1_exit(struct hns_roce_dev *hr_dev) +{ + hns_roce_port_enable(hr_dev, HNS_ROCE_PORT_DOWN); + hns_roce_raq_free(hr_dev); + hns_roce_db_free(hr_dev); +} + +void hns_roce_v1_set_gid(struct hns_roce_dev *hr_dev, u8 port, int gid_index, + union ib_gid *gid) +{ + u32 *p = NULL; + u8 gid_idx = 0; + + gid_idx = hns_get_gid_index(hr_dev, port, gid_index); + + p = (u32 *)&gid->raw[0]; + roce_raw_write(*p, hr_dev->reg_base + ROCEE_PORT_GID_L_0_REG + + (HNS_ROCE_V1_GID_NUM * gid_idx)); + + p = (u32 *)&gid->raw[4]; + roce_raw_write(*p, hr_dev->reg_base + ROCEE_PORT_GID_ML_0_REG + + (HNS_ROCE_V1_GID_NUM * gid_idx)); + + p = (u32 *)&gid->raw[8]; + roce_raw_write(*p, hr_dev->reg_base + ROCEE_PORT_GID_MH_0_REG + + (HNS_ROCE_V1_GID_NUM * gid_idx)); + + p = (u32 *)&gid->raw[0xc]; + roce_raw_write(*p, hr_dev->reg_base + ROCEE_PORT_GID_H_0_REG + + (HNS_ROCE_V1_GID_NUM * gid_idx)); +} + +void hns_roce_v1_set_mac(struct hns_roce_dev *hr_dev, u8 phy_port, u8 *addr) +{ + u32 reg_smac_l; + u16 reg_smac_h; + u16 *p_h; + u32 *p; + u32 val; + + p = (u32 *)(&addr[0]); + reg_smac_l = *p; + roce_raw_write(reg_smac_l, hr_dev->reg_base + ROCEE_SMAC_L_0_REG + + PHY_PORT_OFFSET * phy_port); + + val = roce_read(hr_dev, + ROCEE_SMAC_H_0_REG + phy_port * PHY_PORT_OFFSET); + p_h = (u16 *)(&addr[4]); + reg_smac_h = *p_h; + roce_set_field(val, ROCEE_SMAC_H_ROCEE_SMAC_H_M, + ROCEE_SMAC_H_ROCEE_SMAC_H_S, reg_smac_h); + roce_write(hr_dev, ROCEE_SMAC_H_0_REG + phy_port * PHY_PORT_OFFSET, + val); +} + +void hns_roce_v1_set_mtu(struct hns_roce_dev *hr_dev, u8 phy_port, + enum ib_mtu mtu) +{ + u32 val; + + val = roce_read(hr_dev, + ROCEE_SMAC_H_0_REG + phy_port * PHY_PORT_OFFSET); + roce_set_field(val, ROCEE_SMAC_H_ROCEE_PORT_MTU_M, + ROCEE_SMAC_H_ROCEE_PORT_MTU_S, mtu); + roce_write(hr_dev, ROCEE_SMAC_H_0_REG + phy_port * PHY_PORT_OFFSET, + val); +} + +int hns_roce_v1_write_mtpt(void *mb_buf, struct hns_roce_mr *mr, + unsigned long mtpt_idx) +{ + struct hns_roce_v1_mpt_entry *mpt_entry; + struct scatterlist *sg; + u64 *pages; + int entry; + int i; + + /* MPT filled into mailbox buf */ + mpt_entry = (struct hns_roce_v1_mpt_entry *)mb_buf; + memset(mpt_entry, 0, sizeof(*mpt_entry)); + + roce_set_field(mpt_entry->mpt_byte_4, MPT_BYTE_4_KEY_STATE_M, + MPT_BYTE_4_KEY_STATE_S, KEY_VALID); + roce_set_field(mpt_entry->mpt_byte_4, MPT_BYTE_4_KEY_M, + MPT_BYTE_4_KEY_S, mr->key); + roce_set_field(mpt_entry->mpt_byte_4, MPT_BYTE_4_PAGE_SIZE_M, + MPT_BYTE_4_PAGE_SIZE_S, MR_SIZE_4K); + roce_set_bit(mpt_entry->mpt_byte_4, MPT_BYTE_4_MW_TYPE_S, 0); + roce_set_bit(mpt_entry->mpt_byte_4, MPT_BYTE_4_MW_BIND_ENABLE_S, + (mr->access & IB_ACCESS_MW_BIND ? 1 : 0)); + roce_set_bit(mpt_entry->mpt_byte_4, MPT_BYTE_4_OWN_S, 0); + roce_set_field(mpt_entry->mpt_byte_4, MPT_BYTE_4_MEMORY_LOCATION_TYPE_M, + MPT_BYTE_4_MEMORY_LOCATION_TYPE_S, mr->type); + roce_set_bit(mpt_entry->mpt_byte_4, MPT_BYTE_4_REMOTE_ATOMIC_S, 0); + roce_set_bit(mpt_entry->mpt_byte_4, MPT_BYTE_4_LOCAL_WRITE_S, + (mr->access & IB_ACCESS_LOCAL_WRITE ? 1 : 0)); + roce_set_bit(mpt_entry->mpt_byte_4, MPT_BYTE_4_REMOTE_WRITE_S, + (mr->access & IB_ACCESS_REMOTE_WRITE ? 1 : 0)); + roce_set_bit(mpt_entry->mpt_byte_4, MPT_BYTE_4_REMOTE_READ_S, + (mr->access & IB_ACCESS_REMOTE_READ ? 1 : 0)); + roce_set_bit(mpt_entry->mpt_byte_4, MPT_BYTE_4_REMOTE_INVAL_ENABLE_S, + 0); + roce_set_bit(mpt_entry->mpt_byte_4, MPT_BYTE_4_ADDRESS_TYPE_S, 0); + + roce_set_field(mpt_entry->mpt_byte_12, MPT_BYTE_12_PBL_ADDR_H_M, + MPT_BYTE_12_PBL_ADDR_H_S, 0); + roce_set_field(mpt_entry->mpt_byte_12, MPT_BYTE_12_MW_BIND_COUNTER_M, + MPT_BYTE_12_MW_BIND_COUNTER_S, 0); + + mpt_entry->virt_addr_l = (u32)mr->iova; + mpt_entry->virt_addr_h = (u32)(mr->iova >> 32); + mpt_entry->length = (u32)mr->size; + + roce_set_field(mpt_entry->mpt_byte_28, MPT_BYTE_28_PD_M, + MPT_BYTE_28_PD_S, mr->pd); + roce_set_field(mpt_entry->mpt_byte_28, MPT_BYTE_28_L_KEY_IDX_L_M, + MPT_BYTE_28_L_KEY_IDX_L_S, mtpt_idx); + roce_set_field(mpt_entry->mpt_byte_64, MPT_BYTE_64_L_KEY_IDX_H_M, + MPT_BYTE_64_L_KEY_IDX_H_S, mtpt_idx >> MTPT_IDX_SHIFT); + + /* DMA momery regsiter */ + if (mr->type == MR_TYPE_DMA) + return 0; + + pages = (u64 *) __get_free_page(GFP_KERNEL); + if (!pages) + return -ENOMEM; + + i = 0; + for_each_sg(mr->umem->sg_head.sgl, sg, mr->umem->nmap, entry) { + pages[i] = ((u64)sg_dma_address(sg)) >> 12; + + /* Directly record to MTPT table firstly 7 entry */ + if (i >= HNS_ROCE_MAX_INNER_MTPT_NUM) + break; + i++; + } + + /* Register user mr */ + for (i = 0; i < HNS_ROCE_MAX_INNER_MTPT_NUM; i++) { + switch (i) { + case 0: + mpt_entry->pa0_l = cpu_to_le32((u32)(pages[i])); + roce_set_field(mpt_entry->mpt_byte_36, + MPT_BYTE_36_PA0_H_M, + MPT_BYTE_36_PA0_H_S, + cpu_to_le32((u32)(pages[i] >> PAGES_SHIFT_32))); + break; + case 1: + roce_set_field(mpt_entry->mpt_byte_36, + MPT_BYTE_36_PA1_L_M, + MPT_BYTE_36_PA1_L_S, + cpu_to_le32((u32)(pages[i]))); + roce_set_field(mpt_entry->mpt_byte_40, + MPT_BYTE_40_PA1_H_M, + MPT_BYTE_40_PA1_H_S, + cpu_to_le32((u32)(pages[i] >> PAGES_SHIFT_24))); + break; + case 2: + roce_set_field(mpt_entry->mpt_byte_40, + MPT_BYTE_40_PA2_L_M, + MPT_BYTE_40_PA2_L_S, + cpu_to_le32((u32)(pages[i]))); + roce_set_field(mpt_entry->mpt_byte_44, + MPT_BYTE_44_PA2_H_M, + MPT_BYTE_44_PA2_H_S, + cpu_to_le32((u32)(pages[i] >> PAGES_SHIFT_16))); + break; + case 3: + roce_set_field(mpt_entry->mpt_byte_44, + MPT_BYTE_44_PA3_L_M, + MPT_BYTE_44_PA3_L_S, + cpu_to_le32((u32)(pages[i]))); + roce_set_field(mpt_entry->mpt_byte_48, + MPT_BYTE_48_PA3_H_M, + MPT_BYTE_48_PA3_H_S, + cpu_to_le32((u32)(pages[i] >> PAGES_SHIFT_8))); + break; + case 4: + mpt_entry->pa4_l = cpu_to_le32((u32)(pages[i])); + roce_set_field(mpt_entry->mpt_byte_56, + MPT_BYTE_56_PA4_H_M, + MPT_BYTE_56_PA4_H_S, + cpu_to_le32((u32)(pages[i] >> PAGES_SHIFT_32))); + break; + case 5: + roce_set_field(mpt_entry->mpt_byte_56, + MPT_BYTE_56_PA5_L_M, + MPT_BYTE_56_PA5_L_S, + cpu_to_le32((u32)(pages[i]))); + roce_set_field(mpt_entry->mpt_byte_60, + MPT_BYTE_60_PA5_H_M, + MPT_BYTE_60_PA5_H_S, + cpu_to_le32((u32)(pages[i] >> PAGES_SHIFT_24))); + break; + case 6: + roce_set_field(mpt_entry->mpt_byte_60, + MPT_BYTE_60_PA6_L_M, + MPT_BYTE_60_PA6_L_S, + cpu_to_le32((u32)(pages[i]))); + roce_set_field(mpt_entry->mpt_byte_64, + MPT_BYTE_64_PA6_H_M, + MPT_BYTE_64_PA6_H_S, + cpu_to_le32((u32)(pages[i] >> PAGES_SHIFT_16))); + break; + default: + break; + } + } + + free_page((unsigned long) pages); + + mpt_entry->pbl_addr_l = (u32)(mr->pbl_dma_addr); + + roce_set_field(mpt_entry->mpt_byte_12, MPT_BYTE_12_PBL_ADDR_H_M, + MPT_BYTE_12_PBL_ADDR_H_S, + ((u32)(mr->pbl_dma_addr >> 32))); + + return 0; +} + +static void *get_cqe(struct hns_roce_cq *hr_cq, int n) +{ + return hns_roce_buf_offset(&hr_cq->hr_buf.hr_buf, + n * HNS_ROCE_V1_CQE_ENTRY_SIZE); +} + +static void *get_sw_cqe(struct hns_roce_cq *hr_cq, int n) +{ + struct hns_roce_cqe *hr_cqe = get_cqe(hr_cq, n & hr_cq->ib_cq.cqe); + + /* Get cqe when Owner bit is Conversely with the MSB of cons_idx */ + return (roce_get_bit(hr_cqe->cqe_byte_4, CQE_BYTE_4_OWNER_S) ^ + !!(n & (hr_cq->ib_cq.cqe + 1))) ? hr_cqe : NULL; +} + +static struct hns_roce_cqe *next_cqe_sw(struct hns_roce_cq *hr_cq) +{ + return get_sw_cqe(hr_cq, hr_cq->cons_index); +} + +void hns_roce_v1_cq_set_ci(struct hns_roce_cq *hr_cq, u32 cons_index, + spinlock_t *doorbell_lock) + +{ + u32 doorbell[2]; + + doorbell[0] = cons_index & ((hr_cq->cq_depth << 1) - 1); + roce_set_bit(doorbell[1], ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_HW_SYNS_S, 1); + roce_set_field(doorbell[1], ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_M, + ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_S, 3); + roce_set_field(doorbell[1], ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_MDF_M, + ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_MDF_S, 0); + roce_set_field(doorbell[1], ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_INP_H_M, + ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_INP_H_S, hr_cq->cqn); + + hns_roce_write64_k(doorbell, hr_cq->cq_db_l); +} + +static void __hns_roce_v1_cq_clean(struct hns_roce_cq *hr_cq, u32 qpn, + struct hns_roce_srq *srq) +{ + struct hns_roce_cqe *cqe, *dest; + u32 prod_index; + int nfreed = 0; + u8 owner_bit; + + for (prod_index = hr_cq->cons_index; get_sw_cqe(hr_cq, prod_index); + ++prod_index) { + if (prod_index == hr_cq->cons_index + hr_cq->ib_cq.cqe) + break; + } + + /* + * Now backwards through the CQ, removing CQ entries + * that match our QP by overwriting them with next entries. + */ + while ((int) --prod_index - (int) hr_cq->cons_index >= 0) { + cqe = get_cqe(hr_cq, prod_index & hr_cq->ib_cq.cqe); + if ((roce_get_field(cqe->cqe_byte_16, CQE_BYTE_16_LOCAL_QPN_M, + CQE_BYTE_16_LOCAL_QPN_S) & + HNS_ROCE_CQE_QPN_MASK) == qpn) { + /* In v1 engine, not support SRQ */ + ++nfreed; + } else if (nfreed) { + dest = get_cqe(hr_cq, (prod_index + nfreed) & + hr_cq->ib_cq.cqe); + owner_bit = roce_get_bit(dest->cqe_byte_4, + CQE_BYTE_4_OWNER_S); + memcpy(dest, cqe, sizeof(*cqe)); + roce_set_bit(dest->cqe_byte_4, CQE_BYTE_4_OWNER_S, + owner_bit); + } + } + + if (nfreed) { + hr_cq->cons_index += nfreed; + /* + * Make sure update of buffer contents is done before + * updating consumer index. + */ + wmb(); + + hns_roce_v1_cq_set_ci(hr_cq, hr_cq->cons_index, + &to_hr_dev(hr_cq->ib_cq.device)->cq_db_lock); + } +} + +static void hns_roce_v1_cq_clean(struct hns_roce_cq *hr_cq, u32 qpn, + struct hns_roce_srq *srq) +{ + spin_lock_irq(&hr_cq->lock); + __hns_roce_v1_cq_clean(hr_cq, qpn, srq); + spin_unlock_irq(&hr_cq->lock); +} + +void hns_roce_v1_write_cqc(struct hns_roce_dev *hr_dev, + struct hns_roce_cq *hr_cq, void *mb_buf, u64 *mtts, + dma_addr_t dma_handle, int nent, u32 vector) +{ + struct hns_roce_cq_context *cq_context = NULL; + void __iomem *tptr_addr; + + cq_context = mb_buf; + memset(cq_context, 0, sizeof(*cq_context)); + + tptr_addr = 0; + hr_dev->priv_addr = tptr_addr; + hr_cq->tptr_addr = tptr_addr; + + /* Register cq_context members */ + roce_set_field(cq_context->cqc_byte_4, + CQ_CONTEXT_CQC_BYTE_4_CQC_STATE_M, + CQ_CONTEXT_CQC_BYTE_4_CQC_STATE_S, CQ_STATE_VALID); + roce_set_field(cq_context->cqc_byte_4, CQ_CONTEXT_CQC_BYTE_4_CQN_M, + CQ_CONTEXT_CQC_BYTE_4_CQN_S, hr_cq->cqn); + cq_context->cqc_byte_4 = cpu_to_le32(cq_context->cqc_byte_4); + + cq_context->cq_bt_l = (u32)dma_handle; + cq_context->cq_bt_l = cpu_to_le32(cq_context->cq_bt_l); + + roce_set_field(cq_context->cqc_byte_12, + CQ_CONTEXT_CQC_BYTE_12_CQ_BT_H_M, + CQ_CONTEXT_CQC_BYTE_12_CQ_BT_H_S, + ((u64)dma_handle >> 32)); + roce_set_field(cq_context->cqc_byte_12, + CQ_CONTEXT_CQC_BYTE_12_CQ_CQE_SHIFT_M, + CQ_CONTEXT_CQC_BYTE_12_CQ_CQE_SHIFT_S, + ilog2((unsigned int)nent)); + roce_set_field(cq_context->cqc_byte_12, CQ_CONTEXT_CQC_BYTE_12_CEQN_M, + CQ_CONTEXT_CQC_BYTE_12_CEQN_S, vector); + cq_context->cqc_byte_12 = cpu_to_le32(cq_context->cqc_byte_12); + + cq_context->cur_cqe_ba0_l = (u32)(mtts[0]); + cq_context->cur_cqe_ba0_l = cpu_to_le32(cq_context->cur_cqe_ba0_l); + + roce_set_field(cq_context->cqc_byte_20, + CQ_CONTEXT_CQC_BYTE_20_CUR_CQE_BA0_H_M, + CQ_CONTEXT_CQC_BYTE_20_CUR_CQE_BA0_H_S, + cpu_to_le32((mtts[0]) >> 32)); + /* Dedicated hardware, directly set 0 */ + roce_set_field(cq_context->cqc_byte_20, + CQ_CONTEXT_CQC_BYTE_20_CQ_CUR_INDEX_M, + CQ_CONTEXT_CQC_BYTE_20_CQ_CUR_INDEX_S, 0); + /** + * 44 = 32 + 12, When evaluating addr to hardware, shift 12 because of + * using 4K page, and shift more 32 because of + * caculating the high 32 bit value evaluated to hardware. + */ + roce_set_field(cq_context->cqc_byte_20, + CQ_CONTEXT_CQC_BYTE_20_CQE_TPTR_ADDR_H_M, + CQ_CONTEXT_CQC_BYTE_20_CQE_TPTR_ADDR_H_S, + (u64)tptr_addr >> 44); + cq_context->cqc_byte_20 = cpu_to_le32(cq_context->cqc_byte_20); + + cq_context->cqe_tptr_addr_l = (u32)((u64)tptr_addr >> 12); + + roce_set_field(cq_context->cqc_byte_32, + CQ_CONTEXT_CQC_BYTE_32_CUR_CQE_BA1_H_M, + CQ_CONTEXT_CQC_BYTE_32_CUR_CQE_BA1_H_S, 0); + roce_set_bit(cq_context->cqc_byte_32, + CQ_CONTEXT_CQC_BYTE_32_SE_FLAG_S, 0); + roce_set_bit(cq_context->cqc_byte_32, + CQ_CONTEXT_CQC_BYTE_32_CE_FLAG_S, 0); + roce_set_bit(cq_context->cqc_byte_32, + CQ_CONTEXT_CQC_BYTE_32_NOTIFICATION_FLAG_S, 0); + roce_set_bit(cq_context->cqc_byte_32, + CQ_CQNTEXT_CQC_BYTE_32_TYPE_OF_COMPLETION_NOTIFICATION_S, + 0); + /*The initial value of cq's ci is 0 */ + roce_set_field(cq_context->cqc_byte_32, + CQ_CONTEXT_CQC_BYTE_32_CQ_CONS_IDX_M, + CQ_CONTEXT_CQC_BYTE_32_CQ_CONS_IDX_S, 0); + cq_context->cqc_byte_32 = cpu_to_le32(cq_context->cqc_byte_32); +} + +int hns_roce_v1_req_notify_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags) +{ + struct hns_roce_cq *hr_cq = to_hr_cq(ibcq); + u32 notification_flag; + u32 doorbell[2]; + int ret = 0; + + notification_flag = (flags & IB_CQ_SOLICITED_MASK) == + IB_CQ_SOLICITED ? CQ_DB_REQ_NOT : CQ_DB_REQ_NOT_SOL; + /* + * flags = 0; Notification Flag = 1, next + * flags = 1; Notification Flag = 0, solocited + */ + doorbell[0] = hr_cq->cons_index & ((hr_cq->cq_depth << 1) - 1); + roce_set_bit(doorbell[1], ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_HW_SYNS_S, 1); + roce_set_field(doorbell[1], ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_M, + ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_S, 3); + roce_set_field(doorbell[1], ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_MDF_M, + ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_MDF_S, 1); + roce_set_field(doorbell[1], ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_INP_H_M, + ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_INP_H_S, + hr_cq->cqn | notification_flag); + + hns_roce_write64_k(doorbell, hr_cq->cq_db_l); + + return ret; +} + +static int hns_roce_v1_poll_one(struct hns_roce_cq *hr_cq, + struct hns_roce_qp **cur_qp, struct ib_wc *wc) +{ + int qpn; + int is_send; + u16 wqe_ctr; + u32 status; + u32 opcode; + struct hns_roce_cqe *cqe; + struct hns_roce_qp *hr_qp; + struct hns_roce_wq *wq; + struct hns_roce_wqe_ctrl_seg *sq_wqe; + struct hns_roce_dev *hr_dev = to_hr_dev(hr_cq->ib_cq.device); + struct device *dev = &hr_dev->pdev->dev; + + /* Find cqe according consumer index */ + cqe = next_cqe_sw(hr_cq); + if (!cqe) + return -EAGAIN; + + ++hr_cq->cons_index; + /* Memory barrier */ + rmb(); + /* 0->SQ, 1->RQ */ + is_send = !(roce_get_bit(cqe->cqe_byte_4, CQE_BYTE_4_SQ_RQ_FLAG_S)); + + /* Local_qpn in UD cqe is always 1, so it needs to compute new qpn */ + if (roce_get_field(cqe->cqe_byte_16, CQE_BYTE_16_LOCAL_QPN_M, + CQE_BYTE_16_LOCAL_QPN_S) <= 1) { + qpn = roce_get_field(cqe->cqe_byte_20, CQE_BYTE_20_PORT_NUM_M, + CQE_BYTE_20_PORT_NUM_S) + + roce_get_field(cqe->cqe_byte_16, CQE_BYTE_16_LOCAL_QPN_M, + CQE_BYTE_16_LOCAL_QPN_S) * + HNS_ROCE_MAX_PORTS; + } else { + qpn = roce_get_field(cqe->cqe_byte_16, CQE_BYTE_16_LOCAL_QPN_M, + CQE_BYTE_16_LOCAL_QPN_S); + } + + if (!*cur_qp || (qpn & HNS_ROCE_CQE_QPN_MASK) != (*cur_qp)->qpn) { + hr_qp = __hns_roce_qp_lookup(hr_dev, qpn); + if (unlikely(!hr_qp)) { + dev_err(dev, "CQ %06lx with entry for unknown QPN %06x\n", + hr_cq->cqn, (qpn & HNS_ROCE_CQE_QPN_MASK)); + return -EINVAL; + } + + *cur_qp = hr_qp; + } + + wc->qp = &(*cur_qp)->ibqp; + wc->vendor_err = 0; + + status = roce_get_field(cqe->cqe_byte_4, + CQE_BYTE_4_STATUS_OF_THE_OPERATION_M, + CQE_BYTE_4_STATUS_OF_THE_OPERATION_S) & + HNS_ROCE_CQE_STATUS_MASK; + switch (status) { + case HNS_ROCE_CQE_SUCCESS: + wc->status = IB_WC_SUCCESS; + break; + case HNS_ROCE_CQE_SYNDROME_LOCAL_LENGTH_ERR: + wc->status = IB_WC_LOC_LEN_ERR; + break; + case HNS_ROCE_CQE_SYNDROME_LOCAL_QP_OP_ERR: + wc->status = IB_WC_LOC_QP_OP_ERR; + break; + case HNS_ROCE_CQE_SYNDROME_LOCAL_PROT_ERR: + wc->status = IB_WC_LOC_PROT_ERR; + break; + case HNS_ROCE_CQE_SYNDROME_WR_FLUSH_ERR: + wc->status = IB_WC_WR_FLUSH_ERR; + break; + case HNS_ROCE_CQE_SYNDROME_MEM_MANAGE_OPERATE_ERR: + wc->status = IB_WC_MW_BIND_ERR; + break; + case HNS_ROCE_CQE_SYNDROME_BAD_RESP_ERR: + wc->status = IB_WC_BAD_RESP_ERR; + break; + case HNS_ROCE_CQE_SYNDROME_LOCAL_ACCESS_ERR: + wc->status = IB_WC_LOC_ACCESS_ERR; + break; + case HNS_ROCE_CQE_SYNDROME_REMOTE_INVAL_REQ_ERR: + wc->status = IB_WC_REM_INV_REQ_ERR; + break; + case HNS_ROCE_CQE_SYNDROME_REMOTE_ACCESS_ERR: + wc->status = IB_WC_REM_ACCESS_ERR; + break; + case HNS_ROCE_CQE_SYNDROME_REMOTE_OP_ERR: + wc->status = IB_WC_REM_OP_ERR; + break; + case HNS_ROCE_CQE_SYNDROME_TRANSPORT_RETRY_EXC_ERR: + wc->status = IB_WC_RETRY_EXC_ERR; + break; + case HNS_ROCE_CQE_SYNDROME_RNR_RETRY_EXC_ERR: + wc->status = IB_WC_RNR_RETRY_EXC_ERR; + break; + default: + wc->status = IB_WC_GENERAL_ERR; + break; + } + + /* CQE status error, directly return */ + if (wc->status != IB_WC_SUCCESS) + return 0; + + if (is_send) { + /* SQ conrespond to CQE */ + sq_wqe = get_send_wqe(*cur_qp, roce_get_field(cqe->cqe_byte_4, + CQE_BYTE_4_WQE_INDEX_M, + CQE_BYTE_4_WQE_INDEX_S)); + switch (sq_wqe->flag & HNS_ROCE_WQE_OPCODE_MASK) { + case HNS_ROCE_WQE_OPCODE_SEND: + wc->opcode = IB_WC_SEND; + break; + case HNS_ROCE_WQE_OPCODE_RDMA_READ: + wc->opcode = IB_WC_RDMA_READ; + wc->byte_len = le32_to_cpu(cqe->byte_cnt); + break; + case HNS_ROCE_WQE_OPCODE_RDMA_WRITE: + wc->opcode = IB_WC_RDMA_WRITE; + break; + case HNS_ROCE_WQE_OPCODE_LOCAL_INV: + wc->opcode = IB_WC_LOCAL_INV; + break; + case HNS_ROCE_WQE_OPCODE_UD_SEND: + wc->opcode = IB_WC_SEND; + break; + default: + wc->status = IB_WC_GENERAL_ERR; + break; + } + wc->wc_flags = (sq_wqe->flag & HNS_ROCE_WQE_IMM ? + IB_WC_WITH_IMM : 0); + + wq = &(*cur_qp)->sq; + if ((*cur_qp)->sq_signal_bits) { + /* + * If sg_signal_bit is 1, + * firstly tail pointer updated to wqe + * which current cqe correspond to + */ + wqe_ctr = (u16)roce_get_field(cqe->cqe_byte_4, + CQE_BYTE_4_WQE_INDEX_M, + CQE_BYTE_4_WQE_INDEX_S); + wq->tail += (wqe_ctr - (u16)wq->tail) & + (wq->wqe_cnt - 1); + } + wc->wr_id = wq->wrid[wq->tail & (wq->wqe_cnt - 1)]; + ++wq->tail; + } else { + /* RQ conrespond to CQE */ + wc->byte_len = le32_to_cpu(cqe->byte_cnt); + opcode = roce_get_field(cqe->cqe_byte_4, + CQE_BYTE_4_OPERATION_TYPE_M, + CQE_BYTE_4_OPERATION_TYPE_S) & + HNS_ROCE_CQE_OPCODE_MASK; + switch (opcode) { + case HNS_ROCE_OPCODE_RDMA_WITH_IMM_RECEIVE: + wc->opcode = IB_WC_RECV_RDMA_WITH_IMM; + wc->wc_flags = IB_WC_WITH_IMM; + wc->ex.imm_data = le32_to_cpu(cqe->immediate_data); + break; + case HNS_ROCE_OPCODE_SEND_DATA_RECEIVE: + if (roce_get_bit(cqe->cqe_byte_4, + CQE_BYTE_4_IMM_INDICATOR_S)) { + wc->opcode = IB_WC_RECV; + wc->wc_flags = IB_WC_WITH_IMM; + wc->ex.imm_data = le32_to_cpu( + cqe->immediate_data); + } else { + wc->opcode = IB_WC_RECV; + wc->wc_flags = 0; + } + break; + default: + wc->status = IB_WC_GENERAL_ERR; + break; + } + + /* Update tail pointer, record wr_id */ + wq = &(*cur_qp)->rq; + wc->wr_id = wq->wrid[wq->tail & (wq->wqe_cnt - 1)]; + ++wq->tail; + wc->sl = (u8)roce_get_field(cqe->cqe_byte_20, CQE_BYTE_20_SL_M, + CQE_BYTE_20_SL_S); + wc->src_qp = (u8)roce_get_field(cqe->cqe_byte_20, + CQE_BYTE_20_REMOTE_QPN_M, + CQE_BYTE_20_REMOTE_QPN_S); + wc->wc_flags |= (roce_get_bit(cqe->cqe_byte_20, + CQE_BYTE_20_GRH_PRESENT_S) ? + IB_WC_GRH : 0); + wc->pkey_index = (u16)roce_get_field(cqe->cqe_byte_28, + CQE_BYTE_28_P_KEY_IDX_M, + CQE_BYTE_28_P_KEY_IDX_S); + } + + return 0; +} + +int hns_roce_v1_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc) +{ + struct hns_roce_cq *hr_cq = to_hr_cq(ibcq); + struct hns_roce_qp *cur_qp = NULL; + unsigned long flags; + int npolled; + int ret = 0; + + spin_lock_irqsave(&hr_cq->lock, flags); + + for (npolled = 0; npolled < num_entries; ++npolled) { + ret = hns_roce_v1_poll_one(hr_cq, &cur_qp, wc + npolled); + if (ret) + break; + } + + if (npolled) { + hns_roce_v1_cq_set_ci(hr_cq, hr_cq->cons_index, + &to_hr_dev(ibcq->device)->cq_db_lock); + } + + spin_unlock_irqrestore(&hr_cq->lock, flags); + + if (ret == 0 || ret == -EAGAIN) + return npolled; + else + return ret; +} + +static int hns_roce_v1_qp_modify(struct hns_roce_dev *hr_dev, + struct hns_roce_mtt *mtt, + enum hns_roce_qp_state cur_state, + enum hns_roce_qp_state new_state, + struct hns_roce_qp_context *context, + struct hns_roce_qp *hr_qp) +{ + static const u16 + op[HNS_ROCE_QP_NUM_STATE][HNS_ROCE_QP_NUM_STATE] = { + [HNS_ROCE_QP_STATE_RST] = { + [HNS_ROCE_QP_STATE_RST] = HNS_ROCE_CMD_2RST_QP, + [HNS_ROCE_QP_STATE_ERR] = HNS_ROCE_CMD_2ERR_QP, + [HNS_ROCE_QP_STATE_INIT] = HNS_ROCE_CMD_RST2INIT_QP, + }, + [HNS_ROCE_QP_STATE_INIT] = { + [HNS_ROCE_QP_STATE_RST] = HNS_ROCE_CMD_2RST_QP, + [HNS_ROCE_QP_STATE_ERR] = HNS_ROCE_CMD_2ERR_QP, + /* Note: In v1 engine, HW doesn't support RST2INIT. + * We use RST2INIT cmd instead of INIT2INIT. + */ + [HNS_ROCE_QP_STATE_INIT] = HNS_ROCE_CMD_RST2INIT_QP, + [HNS_ROCE_QP_STATE_RTR] = HNS_ROCE_CMD_INIT2RTR_QP, + }, + [HNS_ROCE_QP_STATE_RTR] = { + [HNS_ROCE_QP_STATE_RST] = HNS_ROCE_CMD_2RST_QP, + [HNS_ROCE_QP_STATE_ERR] = HNS_ROCE_CMD_2ERR_QP, + [HNS_ROCE_QP_STATE_RTS] = HNS_ROCE_CMD_RTR2RTS_QP, + }, + [HNS_ROCE_QP_STATE_RTS] = { + [HNS_ROCE_QP_STATE_RST] = HNS_ROCE_CMD_2RST_QP, + [HNS_ROCE_QP_STATE_ERR] = HNS_ROCE_CMD_2ERR_QP, + [HNS_ROCE_QP_STATE_RTS] = HNS_ROCE_CMD_RTS2RTS_QP, + [HNS_ROCE_QP_STATE_SQD] = HNS_ROCE_CMD_RTS2SQD_QP, + }, + [HNS_ROCE_QP_STATE_SQD] = { + [HNS_ROCE_QP_STATE_RST] = HNS_ROCE_CMD_2RST_QP, + [HNS_ROCE_QP_STATE_ERR] = HNS_ROCE_CMD_2ERR_QP, + [HNS_ROCE_QP_STATE_RTS] = HNS_ROCE_CMD_SQD2RTS_QP, + [HNS_ROCE_QP_STATE_SQD] = HNS_ROCE_CMD_SQD2SQD_QP, + }, + [HNS_ROCE_QP_STATE_ERR] = { + [HNS_ROCE_QP_STATE_RST] = HNS_ROCE_CMD_2RST_QP, + [HNS_ROCE_QP_STATE_ERR] = HNS_ROCE_CMD_2ERR_QP, + } + }; + + struct hns_roce_cmd_mailbox *mailbox; + struct device *dev = &hr_dev->pdev->dev; + int ret = 0; + + if (cur_state >= HNS_ROCE_QP_NUM_STATE || + new_state >= HNS_ROCE_QP_NUM_STATE || + !op[cur_state][new_state]) { + dev_err(dev, "[modify_qp]not support state %d to %d\n", + cur_state, new_state); + return -EINVAL; + } + + if (op[cur_state][new_state] == HNS_ROCE_CMD_2RST_QP) + return hns_roce_cmd_mbox(hr_dev, 0, 0, hr_qp->qpn, 2, + HNS_ROCE_CMD_2RST_QP, + HNS_ROCE_CMD_TIME_CLASS_A); + + if (op[cur_state][new_state] == HNS_ROCE_CMD_2ERR_QP) + return hns_roce_cmd_mbox(hr_dev, 0, 0, hr_qp->qpn, 2, + HNS_ROCE_CMD_2ERR_QP, + HNS_ROCE_CMD_TIME_CLASS_A); + + mailbox = hns_roce_alloc_cmd_mailbox(hr_dev); + if (IS_ERR(mailbox)) + return PTR_ERR(mailbox); + + memcpy(mailbox->buf, context, sizeof(*context)); + + ret = hns_roce_cmd_mbox(hr_dev, mailbox->dma, 0, hr_qp->qpn, 0, + op[cur_state][new_state], + HNS_ROCE_CMD_TIME_CLASS_C); + + hns_roce_free_cmd_mailbox(hr_dev, mailbox); + return ret; +} + +static int hns_roce_v1_m_sqp(struct ib_qp *ibqp, const struct ib_qp_attr *attr, + int attr_mask, enum ib_qp_state cur_state, + enum ib_qp_state new_state) +{ + struct hns_roce_dev *hr_dev = to_hr_dev(ibqp->device); + struct hns_roce_qp *hr_qp = to_hr_qp(ibqp); + struct hns_roce_sqp_context *context; + struct device *dev = &hr_dev->pdev->dev; + dma_addr_t dma_handle = 0; + int rq_pa_start; + u32 reg_val; + u64 *mtts; + u32 *addr; + + context = kzalloc(sizeof(*context), GFP_KERNEL); + if (!context) + return -ENOMEM; + + /* Search QP buf's MTTs */ + mtts = hns_roce_table_find(&hr_dev->mr_table.mtt_table, + hr_qp->mtt.first_seg, &dma_handle); + if (!mtts) { + dev_err(dev, "qp buf pa find failed\n"); + goto out; + } + + if (cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) { + roce_set_field(context->qp1c_bytes_4, + QP1C_BYTES_4_SQ_WQE_SHIFT_M, + QP1C_BYTES_4_SQ_WQE_SHIFT_S, + ilog2((unsigned int)hr_qp->sq.wqe_cnt)); + roce_set_field(context->qp1c_bytes_4, + QP1C_BYTES_4_RQ_WQE_SHIFT_M, + QP1C_BYTES_4_RQ_WQE_SHIFT_S, + ilog2((unsigned int)hr_qp->rq.wqe_cnt)); + roce_set_field(context->qp1c_bytes_4, QP1C_BYTES_4_PD_M, + QP1C_BYTES_4_PD_S, to_hr_pd(ibqp->pd)->pdn); + + context->sq_rq_bt_l = (u32)(dma_handle); + roce_set_field(context->qp1c_bytes_12, + QP1C_BYTES_12_SQ_RQ_BT_H_M, + QP1C_BYTES_12_SQ_RQ_BT_H_S, + ((u32)(dma_handle >> 32))); + + roce_set_field(context->qp1c_bytes_16, QP1C_BYTES_16_RQ_HEAD_M, + QP1C_BYTES_16_RQ_HEAD_S, hr_qp->rq.head); + roce_set_field(context->qp1c_bytes_16, QP1C_BYTES_16_PORT_NUM_M, + QP1C_BYTES_16_PORT_NUM_S, hr_qp->port); + roce_set_bit(context->qp1c_bytes_16, + QP1C_BYTES_16_SIGNALING_TYPE_S, + hr_qp->sq_signal_bits); + roce_set_bit(context->qp1c_bytes_16, + QP1C_BYTES_16_LOCAL_ENABLE_E2E_CREDIT_S, + hr_qp->sq_signal_bits); + roce_set_bit(context->qp1c_bytes_16, QP1C_BYTES_16_RQ_BA_FLG_S, + 1); + roce_set_bit(context->qp1c_bytes_16, QP1C_BYTES_16_SQ_BA_FLG_S, + 1); + roce_set_bit(context->qp1c_bytes_16, QP1C_BYTES_16_QP1_ERR_S, + 0); + + roce_set_field(context->qp1c_bytes_20, QP1C_BYTES_20_SQ_HEAD_M, + QP1C_BYTES_20_SQ_HEAD_S, hr_qp->sq.head); + roce_set_field(context->qp1c_bytes_20, QP1C_BYTES_20_PKEY_IDX_M, + QP1C_BYTES_20_PKEY_IDX_S, attr->pkey_index); + + rq_pa_start = (u32)hr_qp->rq.offset / PAGE_SIZE; + context->cur_rq_wqe_ba_l = (u32)(mtts[rq_pa_start]); + + roce_set_field(context->qp1c_bytes_28, + QP1C_BYTES_28_CUR_RQ_WQE_BA_H_M, + QP1C_BYTES_28_CUR_RQ_WQE_BA_H_S, + (mtts[rq_pa_start]) >> 32); + roce_set_field(context->qp1c_bytes_28, + QP1C_BYTES_28_RQ_CUR_IDX_M, + QP1C_BYTES_28_RQ_CUR_IDX_S, 0); + + roce_set_field(context->qp1c_bytes_32, + QP1C_BYTES_32_RX_CQ_NUM_M, + QP1C_BYTES_32_RX_CQ_NUM_S, + to_hr_cq(ibqp->recv_cq)->cqn); + roce_set_field(context->qp1c_bytes_32, + QP1C_BYTES_32_TX_CQ_NUM_M, + QP1C_BYTES_32_TX_CQ_NUM_S, + to_hr_cq(ibqp->send_cq)->cqn); + + context->cur_sq_wqe_ba_l = (u32)mtts[0]; + + roce_set_field(context->qp1c_bytes_40, + QP1C_BYTES_40_CUR_SQ_WQE_BA_H_M, + QP1C_BYTES_40_CUR_SQ_WQE_BA_H_S, + (mtts[0]) >> 32); + roce_set_field(context->qp1c_bytes_40, + QP1C_BYTES_40_SQ_CUR_IDX_M, + QP1C_BYTES_40_SQ_CUR_IDX_S, 0); + + /* Copy context to QP1C register */ + addr = (u32 *)(hr_dev->reg_base + ROCEE_QP1C_CFG0_0_REG + + hr_qp->port * sizeof(*context)); + + writel(context->qp1c_bytes_4, addr); + writel(context->sq_rq_bt_l, addr + 1); + writel(context->qp1c_bytes_12, addr + 2); + writel(context->qp1c_bytes_16, addr + 3); + writel(context->qp1c_bytes_20, addr + 4); + writel(context->cur_rq_wqe_ba_l, addr + 5); + writel(context->qp1c_bytes_28, addr + 6); + writel(context->qp1c_bytes_32, addr + 7); + writel(context->cur_sq_wqe_ba_l, addr + 8); + } + + /* Modify QP1C status */ + reg_val = roce_read(hr_dev, ROCEE_QP1C_CFG0_0_REG + + hr_qp->port * sizeof(*context)); + roce_set_field(reg_val, ROCEE_QP1C_CFG0_0_ROCEE_QP1C_QP_ST_M, + ROCEE_QP1C_CFG0_0_ROCEE_QP1C_QP_ST_S, new_state); + roce_write(hr_dev, ROCEE_QP1C_CFG0_0_REG + + hr_qp->port * sizeof(*context), reg_val); + + hr_qp->state = new_state; + if (new_state == IB_QPS_RESET) { + hns_roce_v1_cq_clean(to_hr_cq(ibqp->recv_cq), hr_qp->qpn, + ibqp->srq ? to_hr_srq(ibqp->srq) : NULL); + if (ibqp->send_cq != ibqp->recv_cq) + hns_roce_v1_cq_clean(to_hr_cq(ibqp->send_cq), + hr_qp->qpn, NULL); + + hr_qp->rq.head = 0; + hr_qp->rq.tail = 0; + hr_qp->sq.head = 0; + hr_qp->sq.tail = 0; + hr_qp->sq_next_wqe = 0; + } + + kfree(context); + return 0; + +out: + kfree(context); + return -EINVAL; +} + +static int hns_roce_v1_m_qp(struct ib_qp *ibqp, const struct ib_qp_attr *attr, + int attr_mask, enum ib_qp_state cur_state, + enum ib_qp_state new_state) +{ + struct hns_roce_dev *hr_dev = to_hr_dev(ibqp->device); + struct hns_roce_qp *hr_qp = to_hr_qp(ibqp); + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_qp_context *context; + struct hns_roce_rq_db rq_db; + dma_addr_t dma_handle_2 = 0; + dma_addr_t dma_handle = 0; + uint32_t doorbell[2] = {0}; + int rq_pa_start = 0; + u32 reg_val = 0; + u64 *mtts_2 = NULL; + int ret = -EINVAL; + u64 *mtts = NULL; + int port; + u8 *dmac; + u8 *smac; + + context = kzalloc(sizeof(*context), GFP_KERNEL); + if (!context) + return -ENOMEM; + + /* Search qp buf's mtts */ + mtts = hns_roce_table_find(&hr_dev->mr_table.mtt_table, + hr_qp->mtt.first_seg, &dma_handle); + if (mtts == NULL) { + dev_err(dev, "qp buf pa find failed\n"); + goto out; + } + + /* Search IRRL's mtts */ + mtts_2 = hns_roce_table_find(&hr_dev->qp_table.irrl_table, hr_qp->qpn, + &dma_handle_2); + if (mtts_2 == NULL) { + dev_err(dev, "qp irrl_table find failed\n"); + goto out; + } + + /* + *Reset to init + * Mandatory param: + * IB_QP_STATE | IB_QP_PKEY_INDEX | IB_QP_PORT | IB_QP_ACCESS_FLAGS + * Optional param: NA + */ + if (cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) { + roce_set_field(context->qpc_bytes_4, + QP_CONTEXT_QPC_BYTES_4_TRANSPORT_SERVICE_TYPE_M, + QP_CONTEXT_QPC_BYTES_4_TRANSPORT_SERVICE_TYPE_S, + to_hr_qp_type(hr_qp->ibqp.qp_type)); + + roce_set_bit(context->qpc_bytes_4, + QP_CONTEXT_QPC_BYTE_4_ENABLE_FPMR_S, 0); + roce_set_bit(context->qpc_bytes_4, + QP_CONTEXT_QPC_BYTE_4_RDMA_READ_ENABLE_S, + !!(attr->qp_access_flags & IB_ACCESS_REMOTE_READ)); + roce_set_bit(context->qpc_bytes_4, + QP_CONTEXT_QPC_BYTE_4_RDMA_WRITE_ENABLE_S, + !!(attr->qp_access_flags & IB_ACCESS_REMOTE_WRITE) + ); + roce_set_bit(context->qpc_bytes_4, + QP_CONTEXT_QPC_BYTE_4_ATOMIC_OPERATION_ENABLE_S, + !!(attr->qp_access_flags & IB_ACCESS_REMOTE_ATOMIC) + ); + roce_set_bit(context->qpc_bytes_4, + QP_CONTEXT_QPC_BYTE_4_RDMAR_USE_S, 1); + roce_set_field(context->qpc_bytes_4, + QP_CONTEXT_QPC_BYTES_4_SQ_WQE_SHIFT_M, + QP_CONTEXT_QPC_BYTES_4_SQ_WQE_SHIFT_S, + ilog2((unsigned int)hr_qp->sq.wqe_cnt)); + roce_set_field(context->qpc_bytes_4, + QP_CONTEXT_QPC_BYTES_4_RQ_WQE_SHIFT_M, + QP_CONTEXT_QPC_BYTES_4_RQ_WQE_SHIFT_S, + ilog2((unsigned int)hr_qp->rq.wqe_cnt)); + roce_set_field(context->qpc_bytes_4, + QP_CONTEXT_QPC_BYTES_4_PD_M, + QP_CONTEXT_QPC_BYTES_4_PD_S, + to_hr_pd(ibqp->pd)->pdn); + hr_qp->access_flags = attr->qp_access_flags; + roce_set_field(context->qpc_bytes_8, + QP_CONTEXT_QPC_BYTES_8_TX_COMPLETION_M, + QP_CONTEXT_QPC_BYTES_8_TX_COMPLETION_S, + to_hr_cq(ibqp->send_cq)->cqn); + roce_set_field(context->qpc_bytes_8, + QP_CONTEXT_QPC_BYTES_8_RX_COMPLETION_M, + QP_CONTEXT_QPC_BYTES_8_RX_COMPLETION_S, + to_hr_cq(ibqp->recv_cq)->cqn); + + if (ibqp->srq) + roce_set_field(context->qpc_bytes_12, + QP_CONTEXT_QPC_BYTES_12_SRQ_NUMBER_M, + QP_CONTEXT_QPC_BYTES_12_SRQ_NUMBER_S, + to_hr_srq(ibqp->srq)->srqn); + + roce_set_field(context->qpc_bytes_12, + QP_CONTEXT_QPC_BYTES_12_P_KEY_INDEX_M, + QP_CONTEXT_QPC_BYTES_12_P_KEY_INDEX_S, + attr->pkey_index); + hr_qp->pkey_index = attr->pkey_index; + roce_set_field(context->qpc_bytes_16, + QP_CONTEXT_QPC_BYTES_16_QP_NUM_M, + QP_CONTEXT_QPC_BYTES_16_QP_NUM_S, hr_qp->qpn); + + } else if (cur_state == IB_QPS_INIT && new_state == IB_QPS_INIT) { + roce_set_field(context->qpc_bytes_4, + QP_CONTEXT_QPC_BYTES_4_TRANSPORT_SERVICE_TYPE_M, + QP_CONTEXT_QPC_BYTES_4_TRANSPORT_SERVICE_TYPE_S, + to_hr_qp_type(hr_qp->ibqp.qp_type)); + roce_set_bit(context->qpc_bytes_4, + QP_CONTEXT_QPC_BYTE_4_ENABLE_FPMR_S, 0); + if (attr_mask & IB_QP_ACCESS_FLAGS) { + roce_set_bit(context->qpc_bytes_4, + QP_CONTEXT_QPC_BYTE_4_RDMA_READ_ENABLE_S, + !!(attr->qp_access_flags & + IB_ACCESS_REMOTE_READ)); + roce_set_bit(context->qpc_bytes_4, + QP_CONTEXT_QPC_BYTE_4_RDMA_WRITE_ENABLE_S, + !!(attr->qp_access_flags & + IB_ACCESS_REMOTE_WRITE)); + } else { + roce_set_bit(context->qpc_bytes_4, + QP_CONTEXT_QPC_BYTE_4_RDMA_READ_ENABLE_S, + !!(hr_qp->access_flags & + IB_ACCESS_REMOTE_READ)); + roce_set_bit(context->qpc_bytes_4, + QP_CONTEXT_QPC_BYTE_4_RDMA_WRITE_ENABLE_S, + !!(hr_qp->access_flags & + IB_ACCESS_REMOTE_WRITE)); + } + + roce_set_bit(context->qpc_bytes_4, + QP_CONTEXT_QPC_BYTE_4_RDMAR_USE_S, 1); + roce_set_field(context->qpc_bytes_4, + QP_CONTEXT_QPC_BYTES_4_SQ_WQE_SHIFT_M, + QP_CONTEXT_QPC_BYTES_4_SQ_WQE_SHIFT_S, + ilog2((unsigned int)hr_qp->sq.wqe_cnt)); + roce_set_field(context->qpc_bytes_4, + QP_CONTEXT_QPC_BYTES_4_RQ_WQE_SHIFT_M, + QP_CONTEXT_QPC_BYTES_4_RQ_WQE_SHIFT_S, + ilog2((unsigned int)hr_qp->rq.wqe_cnt)); + roce_set_field(context->qpc_bytes_4, + QP_CONTEXT_QPC_BYTES_4_PD_M, + QP_CONTEXT_QPC_BYTES_4_PD_S, + to_hr_pd(ibqp->pd)->pdn); + + roce_set_field(context->qpc_bytes_8, + QP_CONTEXT_QPC_BYTES_8_TX_COMPLETION_M, + QP_CONTEXT_QPC_BYTES_8_TX_COMPLETION_S, + to_hr_cq(ibqp->send_cq)->cqn); + roce_set_field(context->qpc_bytes_8, + QP_CONTEXT_QPC_BYTES_8_RX_COMPLETION_M, + QP_CONTEXT_QPC_BYTES_8_RX_COMPLETION_S, + to_hr_cq(ibqp->recv_cq)->cqn); + + if (ibqp->srq) + roce_set_field(context->qpc_bytes_12, + QP_CONTEXT_QPC_BYTES_12_SRQ_NUMBER_M, + QP_CONTEXT_QPC_BYTES_12_SRQ_NUMBER_S, + to_hr_srq(ibqp->srq)->srqn); + if (attr_mask & IB_QP_PKEY_INDEX) + roce_set_field(context->qpc_bytes_12, + QP_CONTEXT_QPC_BYTES_12_P_KEY_INDEX_M, + QP_CONTEXT_QPC_BYTES_12_P_KEY_INDEX_S, + attr->pkey_index); + else + roce_set_field(context->qpc_bytes_12, + QP_CONTEXT_QPC_BYTES_12_P_KEY_INDEX_M, + QP_CONTEXT_QPC_BYTES_12_P_KEY_INDEX_S, + hr_qp->pkey_index); + + roce_set_field(context->qpc_bytes_16, + QP_CONTEXT_QPC_BYTES_16_QP_NUM_M, + QP_CONTEXT_QPC_BYTES_16_QP_NUM_S, hr_qp->qpn); + } else if (cur_state == IB_QPS_INIT && new_state == IB_QPS_RTR) { + if ((attr_mask & IB_QP_ALT_PATH) || + (attr_mask & IB_QP_ACCESS_FLAGS) || + (attr_mask & IB_QP_PKEY_INDEX) || + (attr_mask & IB_QP_QKEY)) { + dev_err(dev, "INIT2RTR attr_mask error\n"); + goto out; + } + + dmac = (u8 *)attr->ah_attr.dmac; + + context->sq_rq_bt_l = (u32)(dma_handle); + roce_set_field(context->qpc_bytes_24, + QP_CONTEXT_QPC_BYTES_24_SQ_RQ_BT_H_M, + QP_CONTEXT_QPC_BYTES_24_SQ_RQ_BT_H_S, + ((u32)(dma_handle >> 32))); + roce_set_bit(context->qpc_bytes_24, + QP_CONTEXT_QPC_BYTE_24_REMOTE_ENABLE_E2E_CREDITS_S, + 1); + roce_set_field(context->qpc_bytes_24, + QP_CONTEXT_QPC_BYTES_24_MINIMUM_RNR_NAK_TIMER_M, + QP_CONTEXT_QPC_BYTES_24_MINIMUM_RNR_NAK_TIMER_S, + attr->min_rnr_timer); + context->irrl_ba_l = (u32)(dma_handle_2); + roce_set_field(context->qpc_bytes_32, + QP_CONTEXT_QPC_BYTES_32_IRRL_BA_H_M, + QP_CONTEXT_QPC_BYTES_32_IRRL_BA_H_S, + ((u32)(dma_handle_2 >> 32)) & + QP_CONTEXT_QPC_BYTES_32_IRRL_BA_H_M); + roce_set_field(context->qpc_bytes_32, + QP_CONTEXT_QPC_BYTES_32_MIG_STATE_M, + QP_CONTEXT_QPC_BYTES_32_MIG_STATE_S, 0); + roce_set_bit(context->qpc_bytes_32, + QP_CONTEXT_QPC_BYTE_32_LOCAL_ENABLE_E2E_CREDITS_S, + 1); + roce_set_bit(context->qpc_bytes_32, + QP_CONTEXT_QPC_BYTE_32_SIGNALING_TYPE_S, + hr_qp->sq_signal_bits); + + for (port = 0; port < hr_dev->caps.num_ports; port++) { + smac = (u8 *)hr_dev->dev_addr[port]; + dev_dbg(dev, "smac: %2x: %2x: %2x: %2x: %2x: %2x\n", + smac[0], smac[1], smac[2], smac[3], smac[4], + smac[5]); + if ((dmac[0] == smac[0]) && (dmac[1] == smac[1]) && + (dmac[2] == smac[2]) && (dmac[3] == smac[3]) && + (dmac[4] == smac[4]) && (dmac[5] == smac[5])) { + roce_set_bit(context->qpc_bytes_32, + QP_CONTEXT_QPC_BYTE_32_LOOPBACK_INDICATOR_S, + 1); + break; + } + } + + if (hr_dev->loop_idc == 0x1) + roce_set_bit(context->qpc_bytes_32, + QP_CONTEXT_QPC_BYTE_32_LOOPBACK_INDICATOR_S, 1); + + roce_set_bit(context->qpc_bytes_32, + QP_CONTEXT_QPC_BYTE_32_GLOBAL_HEADER_S, + attr->ah_attr.ah_flags); + roce_set_field(context->qpc_bytes_32, + QP_CONTEXT_QPC_BYTES_32_RESPONDER_RESOURCES_M, + QP_CONTEXT_QPC_BYTES_32_RESPONDER_RESOURCES_S, + ilog2((unsigned int)attr->max_dest_rd_atomic)); + + roce_set_field(context->qpc_bytes_36, + QP_CONTEXT_QPC_BYTES_36_DEST_QP_M, + QP_CONTEXT_QPC_BYTES_36_DEST_QP_S, + attr->dest_qp_num); + + /* Configure GID index */ + roce_set_field(context->qpc_bytes_36, + QP_CONTEXT_QPC_BYTES_36_SGID_INDEX_M, + QP_CONTEXT_QPC_BYTES_36_SGID_INDEX_S, + hns_get_gid_index(hr_dev, + attr->ah_attr.port_num - 1, + attr->ah_attr.grh.sgid_index)); + + memcpy(&(context->dmac_l), dmac, 4); + + roce_set_field(context->qpc_bytes_44, + QP_CONTEXT_QPC_BYTES_44_DMAC_H_M, + QP_CONTEXT_QPC_BYTES_44_DMAC_H_S, + *((u16 *)(&dmac[4]))); + roce_set_field(context->qpc_bytes_44, + QP_CONTEXT_QPC_BYTES_44_MAXIMUM_STATIC_RATE_M, + QP_CONTEXT_QPC_BYTES_44_MAXIMUM_STATIC_RATE_S, + attr->ah_attr.static_rate); + roce_set_field(context->qpc_bytes_44, + QP_CONTEXT_QPC_BYTES_44_HOPLMT_M, + QP_CONTEXT_QPC_BYTES_44_HOPLMT_S, + attr->ah_attr.grh.hop_limit); + + roce_set_field(context->qpc_bytes_48, + QP_CONTEXT_QPC_BYTES_48_FLOWLABEL_M, + QP_CONTEXT_QPC_BYTES_48_FLOWLABEL_S, + attr->ah_attr.grh.flow_label); + roce_set_field(context->qpc_bytes_48, + QP_CONTEXT_QPC_BYTES_48_TCLASS_M, + QP_CONTEXT_QPC_BYTES_48_TCLASS_S, + attr->ah_attr.grh.traffic_class); + roce_set_field(context->qpc_bytes_48, + QP_CONTEXT_QPC_BYTES_48_MTU_M, + QP_CONTEXT_QPC_BYTES_48_MTU_S, attr->path_mtu); + + memcpy(context->dgid, attr->ah_attr.grh.dgid.raw, + sizeof(attr->ah_attr.grh.dgid.raw)); + + dev_dbg(dev, "dmac:%x :%lx\n", context->dmac_l, + roce_get_field(context->qpc_bytes_44, + QP_CONTEXT_QPC_BYTES_44_DMAC_H_M, + QP_CONTEXT_QPC_BYTES_44_DMAC_H_S)); + + roce_set_field(context->qpc_bytes_68, + QP_CONTEXT_QPC_BYTES_68_RQ_HEAD_M, + QP_CONTEXT_QPC_BYTES_68_RQ_HEAD_S, 0); + roce_set_field(context->qpc_bytes_68, + QP_CONTEXT_QPC_BYTES_68_RQ_CUR_INDEX_M, + QP_CONTEXT_QPC_BYTES_68_RQ_CUR_INDEX_S, 0); + + rq_pa_start = (u32)hr_qp->rq.offset / PAGE_SIZE; + context->cur_rq_wqe_ba_l = (u32)(mtts[rq_pa_start]); + + roce_set_field(context->qpc_bytes_76, + QP_CONTEXT_QPC_BYTES_76_CUR_RQ_WQE_BA_H_M, + QP_CONTEXT_QPC_BYTES_76_CUR_RQ_WQE_BA_H_S, + mtts[rq_pa_start] >> 32); + roce_set_field(context->qpc_bytes_76, + QP_CONTEXT_QPC_BYTES_76_RX_REQ_MSN_M, + QP_CONTEXT_QPC_BYTES_76_RX_REQ_MSN_S, 0); + + context->rx_rnr_time = 0; + + roce_set_field(context->qpc_bytes_84, + QP_CONTEXT_QPC_BYTES_84_LAST_ACK_PSN_M, + QP_CONTEXT_QPC_BYTES_84_LAST_ACK_PSN_S, + attr->rq_psn - 1); + roce_set_field(context->qpc_bytes_84, + QP_CONTEXT_QPC_BYTES_84_TRRL_HEAD_M, + QP_CONTEXT_QPC_BYTES_84_TRRL_HEAD_S, 0); + + roce_set_field(context->qpc_bytes_88, + QP_CONTEXT_QPC_BYTES_88_RX_REQ_EPSN_M, + QP_CONTEXT_QPC_BYTES_88_RX_REQ_EPSN_S, + attr->rq_psn); + roce_set_bit(context->qpc_bytes_88, + QP_CONTEXT_QPC_BYTES_88_RX_REQ_PSN_ERR_FLAG_S, 0); + roce_set_bit(context->qpc_bytes_88, + QP_CONTEXT_QPC_BYTES_88_RX_LAST_OPCODE_FLG_S, 0); + roce_set_field(context->qpc_bytes_88, + QP_CONTEXT_QPC_BYTES_88_RQ_REQ_LAST_OPERATION_TYPE_M, + QP_CONTEXT_QPC_BYTES_88_RQ_REQ_LAST_OPERATION_TYPE_S, + 0); + roce_set_field(context->qpc_bytes_88, + QP_CONTEXT_QPC_BYTES_88_RQ_REQ_RDMA_WR_FLAG_M, + QP_CONTEXT_QPC_BYTES_88_RQ_REQ_RDMA_WR_FLAG_S, + 0); + + context->dma_length = 0; + context->r_key = 0; + context->va_l = 0; + context->va_h = 0; + + roce_set_field(context->qpc_bytes_108, + QP_CONTEXT_QPC_BYTES_108_TRRL_SDB_PSN_M, + QP_CONTEXT_QPC_BYTES_108_TRRL_SDB_PSN_S, 0); + roce_set_bit(context->qpc_bytes_108, + QP_CONTEXT_QPC_BYTES_108_TRRL_SDB_PSN_FLG_S, 0); + roce_set_bit(context->qpc_bytes_108, + QP_CONTEXT_QPC_BYTES_108_TRRL_TDB_PSN_FLG_S, 0); + + roce_set_field(context->qpc_bytes_112, + QP_CONTEXT_QPC_BYTES_112_TRRL_TDB_PSN_M, + QP_CONTEXT_QPC_BYTES_112_TRRL_TDB_PSN_S, 0); + roce_set_field(context->qpc_bytes_112, + QP_CONTEXT_QPC_BYTES_112_TRRL_TAIL_M, + QP_CONTEXT_QPC_BYTES_112_TRRL_TAIL_S, 0); + + /* For chip resp ack */ + roce_set_field(context->qpc_bytes_156, + QP_CONTEXT_QPC_BYTES_156_PORT_NUM_M, + QP_CONTEXT_QPC_BYTES_156_PORT_NUM_S, + hr_qp->port); + roce_set_field(context->qpc_bytes_156, + QP_CONTEXT_QPC_BYTES_156_SL_M, + QP_CONTEXT_QPC_BYTES_156_SL_S, attr->ah_attr.sl); + hr_qp->sl = attr->ah_attr.sl; + } else if (cur_state == IB_QPS_RTR && + new_state == IB_QPS_RTS) { + /* If exist optional param, return error */ + if ((attr_mask & IB_QP_ALT_PATH) || + (attr_mask & IB_QP_ACCESS_FLAGS) || + (attr_mask & IB_QP_QKEY) || + (attr_mask & IB_QP_PATH_MIG_STATE) || + (attr_mask & IB_QP_CUR_STATE) || + (attr_mask & IB_QP_MIN_RNR_TIMER)) { + dev_err(dev, "RTR2RTS attr_mask error\n"); + goto out; + } + + context->rx_cur_sq_wqe_ba_l = (u32)(mtts[0]); + + roce_set_field(context->qpc_bytes_120, + QP_CONTEXT_QPC_BYTES_120_RX_CUR_SQ_WQE_BA_H_M, + QP_CONTEXT_QPC_BYTES_120_RX_CUR_SQ_WQE_BA_H_S, + (mtts[0]) >> 32); + + roce_set_field(context->qpc_bytes_124, + QP_CONTEXT_QPC_BYTES_124_RX_ACK_MSN_M, + QP_CONTEXT_QPC_BYTES_124_RX_ACK_MSN_S, 0); + roce_set_field(context->qpc_bytes_124, + QP_CONTEXT_QPC_BYTES_124_IRRL_MSG_IDX_M, + QP_CONTEXT_QPC_BYTES_124_IRRL_MSG_IDX_S, 0); + + roce_set_field(context->qpc_bytes_128, + QP_CONTEXT_QPC_BYTES_128_RX_ACK_EPSN_M, + QP_CONTEXT_QPC_BYTES_128_RX_ACK_EPSN_S, + attr->sq_psn); + roce_set_bit(context->qpc_bytes_128, + QP_CONTEXT_QPC_BYTES_128_RX_ACK_PSN_ERR_FLG_S, 0); + roce_set_field(context->qpc_bytes_128, + QP_CONTEXT_QPC_BYTES_128_ACK_LAST_OPERATION_TYPE_M, + QP_CONTEXT_QPC_BYTES_128_ACK_LAST_OPERATION_TYPE_S, + 0); + roce_set_bit(context->qpc_bytes_128, + QP_CONTEXT_QPC_BYTES_128_IRRL_PSN_VLD_FLG_S, 0); + + roce_set_field(context->qpc_bytes_132, + QP_CONTEXT_QPC_BYTES_132_IRRL_PSN_M, + QP_CONTEXT_QPC_BYTES_132_IRRL_PSN_S, 0); + roce_set_field(context->qpc_bytes_132, + QP_CONTEXT_QPC_BYTES_132_IRRL_TAIL_M, + QP_CONTEXT_QPC_BYTES_132_IRRL_TAIL_S, 0); + + roce_set_field(context->qpc_bytes_136, + QP_CONTEXT_QPC_BYTES_136_RETRY_MSG_PSN_M, + QP_CONTEXT_QPC_BYTES_136_RETRY_MSG_PSN_S, + attr->sq_psn); + roce_set_field(context->qpc_bytes_136, + QP_CONTEXT_QPC_BYTES_136_RETRY_MSG_FPKT_PSN_L_M, + QP_CONTEXT_QPC_BYTES_136_RETRY_MSG_FPKT_PSN_L_S, + attr->sq_psn); + + roce_set_field(context->qpc_bytes_140, + QP_CONTEXT_QPC_BYTES_140_RETRY_MSG_FPKT_PSN_H_M, + QP_CONTEXT_QPC_BYTES_140_RETRY_MSG_FPKT_PSN_H_S, + (attr->sq_psn >> SQ_PSN_SHIFT)); + roce_set_field(context->qpc_bytes_140, + QP_CONTEXT_QPC_BYTES_140_RETRY_MSG_MSN_M, + QP_CONTEXT_QPC_BYTES_140_RETRY_MSG_MSN_S, 0); + roce_set_bit(context->qpc_bytes_140, + QP_CONTEXT_QPC_BYTES_140_RNR_RETRY_FLG_S, 0); + + roce_set_field(context->qpc_bytes_144, + QP_CONTEXT_QPC_BYTES_144_QP_STATE_M, + QP_CONTEXT_QPC_BYTES_144_QP_STATE_S, + attr->qp_state); + + roce_set_field(context->qpc_bytes_148, + QP_CONTEXT_QPC_BYTES_148_CHECK_FLAG_M, + QP_CONTEXT_QPC_BYTES_148_CHECK_FLAG_S, 0); + roce_set_field(context->qpc_bytes_148, + QP_CONTEXT_QPC_BYTES_148_RETRY_COUNT_M, + QP_CONTEXT_QPC_BYTES_148_RETRY_COUNT_S, 0); + roce_set_field(context->qpc_bytes_148, + QP_CONTEXT_QPC_BYTES_148_RNR_RETRY_COUNT_M, + QP_CONTEXT_QPC_BYTES_148_RNR_RETRY_COUNT_S, 0); + roce_set_field(context->qpc_bytes_148, + QP_CONTEXT_QPC_BYTES_148_LSN_M, + QP_CONTEXT_QPC_BYTES_148_LSN_S, 0x100); + + context->rnr_retry = 0; + + roce_set_field(context->qpc_bytes_156, + QP_CONTEXT_QPC_BYTES_156_RETRY_COUNT_INIT_M, + QP_CONTEXT_QPC_BYTES_156_RETRY_COUNT_INIT_S, + attr->retry_cnt); + roce_set_field(context->qpc_bytes_156, + QP_CONTEXT_QPC_BYTES_156_ACK_TIMEOUT_M, + QP_CONTEXT_QPC_BYTES_156_ACK_TIMEOUT_S, + attr->timeout); + roce_set_field(context->qpc_bytes_156, + QP_CONTEXT_QPC_BYTES_156_RNR_RETRY_COUNT_INIT_M, + QP_CONTEXT_QPC_BYTES_156_RNR_RETRY_COUNT_INIT_S, + attr->rnr_retry); + roce_set_field(context->qpc_bytes_156, + QP_CONTEXT_QPC_BYTES_156_PORT_NUM_M, + QP_CONTEXT_QPC_BYTES_156_PORT_NUM_S, + hr_qp->port); + roce_set_field(context->qpc_bytes_156, + QP_CONTEXT_QPC_BYTES_156_SL_M, + QP_CONTEXT_QPC_BYTES_156_SL_S, attr->ah_attr.sl); + hr_qp->sl = attr->ah_attr.sl; + roce_set_field(context->qpc_bytes_156, + QP_CONTEXT_QPC_BYTES_156_INITIATOR_DEPTH_M, + QP_CONTEXT_QPC_BYTES_156_INITIATOR_DEPTH_S, + ilog2((unsigned int)attr->max_rd_atomic)); + roce_set_field(context->qpc_bytes_156, + QP_CONTEXT_QPC_BYTES_156_ACK_REQ_IND_M, + QP_CONTEXT_QPC_BYTES_156_ACK_REQ_IND_S, 0); + context->pkt_use_len = 0; + + roce_set_field(context->qpc_bytes_164, + QP_CONTEXT_QPC_BYTES_164_SQ_PSN_M, + QP_CONTEXT_QPC_BYTES_164_SQ_PSN_S, attr->sq_psn); + roce_set_field(context->qpc_bytes_164, + QP_CONTEXT_QPC_BYTES_164_IRRL_HEAD_M, + QP_CONTEXT_QPC_BYTES_164_IRRL_HEAD_S, 0); + + roce_set_field(context->qpc_bytes_168, + QP_CONTEXT_QPC_BYTES_168_RETRY_SQ_PSN_M, + QP_CONTEXT_QPC_BYTES_168_RETRY_SQ_PSN_S, + attr->sq_psn); + roce_set_field(context->qpc_bytes_168, + QP_CONTEXT_QPC_BYTES_168_SGE_USE_FLA_M, + QP_CONTEXT_QPC_BYTES_168_SGE_USE_FLA_S, 0); + roce_set_field(context->qpc_bytes_168, + QP_CONTEXT_QPC_BYTES_168_DB_TYPE_M, + QP_CONTEXT_QPC_BYTES_168_DB_TYPE_S, 0); + roce_set_bit(context->qpc_bytes_168, + QP_CONTEXT_QPC_BYTES_168_MSG_LP_IND_S, 0); + roce_set_bit(context->qpc_bytes_168, + QP_CONTEXT_QPC_BYTES_168_CSDB_LP_IND_S, 0); + roce_set_bit(context->qpc_bytes_168, + QP_CONTEXT_QPC_BYTES_168_QP_ERR_FLG_S, 0); + context->sge_use_len = 0; + + roce_set_field(context->qpc_bytes_176, + QP_CONTEXT_QPC_BYTES_176_DB_CUR_INDEX_M, + QP_CONTEXT_QPC_BYTES_176_DB_CUR_INDEX_S, 0); + roce_set_field(context->qpc_bytes_176, + QP_CONTEXT_QPC_BYTES_176_RETRY_DB_CUR_INDEX_M, + QP_CONTEXT_QPC_BYTES_176_RETRY_DB_CUR_INDEX_S, + 0); + roce_set_field(context->qpc_bytes_180, + QP_CONTEXT_QPC_BYTES_180_SQ_CUR_INDEX_M, + QP_CONTEXT_QPC_BYTES_180_SQ_CUR_INDEX_S, 0); + roce_set_field(context->qpc_bytes_180, + QP_CONTEXT_QPC_BYTES_180_SQ_HEAD_M, + QP_CONTEXT_QPC_BYTES_180_SQ_HEAD_S, 0); + + context->tx_cur_sq_wqe_ba_l = (u32)(mtts[0]); + + roce_set_field(context->qpc_bytes_188, + QP_CONTEXT_QPC_BYTES_188_TX_CUR_SQ_WQE_BA_H_M, + QP_CONTEXT_QPC_BYTES_188_TX_CUR_SQ_WQE_BA_H_S, + (mtts[0]) >> 32); + roce_set_bit(context->qpc_bytes_188, + QP_CONTEXT_QPC_BYTES_188_PKT_RETRY_FLG_S, 0); + roce_set_field(context->qpc_bytes_188, + QP_CONTEXT_QPC_BYTES_188_TX_RETRY_CUR_INDEX_M, + QP_CONTEXT_QPC_BYTES_188_TX_RETRY_CUR_INDEX_S, + 0); + } else if ((cur_state == IB_QPS_INIT && new_state == IB_QPS_RESET) || + (cur_state == IB_QPS_INIT && new_state == IB_QPS_ERR) || + (cur_state == IB_QPS_RTR && new_state == IB_QPS_RESET) || + (cur_state == IB_QPS_RTR && new_state == IB_QPS_ERR) || + (cur_state == IB_QPS_RTS && new_state == IB_QPS_RESET) || + (cur_state == IB_QPS_RTS && new_state == IB_QPS_ERR) || + (cur_state == IB_QPS_ERR && new_state == IB_QPS_RESET) || + (cur_state == IB_QPS_ERR && new_state == IB_QPS_ERR)) { + roce_set_field(context->qpc_bytes_144, + QP_CONTEXT_QPC_BYTES_144_QP_STATE_M, + QP_CONTEXT_QPC_BYTES_144_QP_STATE_S, + attr->qp_state); + + } else { + dev_err(dev, "not support this modify\n"); + goto out; + } + + /* Every status migrate must change state */ + roce_set_field(context->qpc_bytes_144, + QP_CONTEXT_QPC_BYTES_144_QP_STATE_M, + QP_CONTEXT_QPC_BYTES_144_QP_STATE_S, attr->qp_state); + + /* SW pass context to HW */ + ret = hns_roce_v1_qp_modify(hr_dev, &hr_qp->mtt, + to_hns_roce_state(cur_state), + to_hns_roce_state(new_state), context, + hr_qp); + if (ret) { + dev_err(dev, "hns_roce_qp_modify failed\n"); + goto out; + } + + /* + * Use rst2init to instead of init2init with drv, + * need to hw to flash RQ HEAD by DB again + */ + if (cur_state == IB_QPS_INIT && new_state == IB_QPS_INIT) { + /* Memory barrier */ + wmb(); + if (hr_qp->ibqp.qp_type == IB_QPT_GSI) { + /* SW update GSI rq header */ + reg_val = roce_read(hr_dev, ROCEE_QP1C_CFG3_0_REG + + QP1C_CFGN_OFFSET * hr_qp->port); + roce_set_field(reg_val, + ROCEE_QP1C_CFG3_0_ROCEE_QP1C_RQ_HEAD_M, + ROCEE_QP1C_CFG3_0_ROCEE_QP1C_RQ_HEAD_S, + hr_qp->rq.head); + roce_write(hr_dev, ROCEE_QP1C_CFG3_0_REG + + QP1C_CFGN_OFFSET * hr_qp->port, reg_val); + } else { + rq_db.u32_4 = 0; + rq_db.u32_8 = 0; + + roce_set_field(rq_db.u32_4, RQ_DOORBELL_U32_4_RQ_HEAD_M, + RQ_DOORBELL_U32_4_RQ_HEAD_S, + hr_qp->rq.head); + roce_set_field(rq_db.u32_8, RQ_DOORBELL_U32_8_QPN_M, + RQ_DOORBELL_U32_8_QPN_S, hr_qp->qpn); + roce_set_field(rq_db.u32_8, RQ_DOORBELL_U32_8_CMD_M, + RQ_DOORBELL_U32_8_CMD_S, 1); + roce_set_bit(rq_db.u32_8, RQ_DOORBELL_U32_8_HW_SYNC_S, + 1); + + doorbell[0] = rq_db.u32_4; + doorbell[1] = rq_db.u32_8; + + hns_roce_write64_k(doorbell, hr_qp->rq.db_reg_l); + } + } + + hr_qp->state = new_state; + + if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) + hr_qp->resp_depth = attr->max_dest_rd_atomic; + if (attr_mask & IB_QP_PORT) + hr_qp->port = (attr->port_num - 1); + + if (new_state == IB_QPS_RESET && !ibqp->uobject) { + hns_roce_v1_cq_clean(to_hr_cq(ibqp->recv_cq), hr_qp->qpn, + ibqp->srq ? to_hr_srq(ibqp->srq) : NULL); + if (ibqp->send_cq != ibqp->recv_cq) + hns_roce_v1_cq_clean(to_hr_cq(ibqp->send_cq), + hr_qp->qpn, NULL); + + hr_qp->rq.head = 0; + hr_qp->rq.tail = 0; + hr_qp->sq.head = 0; + hr_qp->sq.tail = 0; + hr_qp->sq_next_wqe = 0; + } +out: + kfree(context); + return ret; +} + +int hns_roce_v1_modify_qp(struct ib_qp *ibqp, const struct ib_qp_attr *attr, + int attr_mask, enum ib_qp_state cur_state, + enum ib_qp_state new_state) +{ + + if (ibqp->qp_type == IB_QPT_GSI || ibqp->qp_type == IB_QPT_SMI) + return hns_roce_v1_m_sqp(ibqp, attr, attr_mask, cur_state, + new_state); + else + return hns_roce_v1_m_qp(ibqp, attr, attr_mask, cur_state, + new_state); +} + +static enum ib_qp_state to_ib_qp_state(enum hns_roce_qp_state state) +{ + switch (state) { + case HNS_ROCE_QP_STATE_RST: + return IB_QPS_RESET; + case HNS_ROCE_QP_STATE_INIT: + return IB_QPS_INIT; + case HNS_ROCE_QP_STATE_RTR: + return IB_QPS_RTR; + case HNS_ROCE_QP_STATE_RTS: + return IB_QPS_RTS; + case HNS_ROCE_QP_STATE_SQD: + return IB_QPS_SQD; + case HNS_ROCE_QP_STATE_ERR: + return IB_QPS_ERR; + default: + return IB_QPS_ERR; + } +} + +static int hns_roce_v1_query_qpc(struct hns_roce_dev *hr_dev, + struct hns_roce_qp *hr_qp, + struct hns_roce_qp_context *hr_context) +{ + struct hns_roce_cmd_mailbox *mailbox; + int ret; + + mailbox = hns_roce_alloc_cmd_mailbox(hr_dev); + if (IS_ERR(mailbox)) + return PTR_ERR(mailbox); + + ret = hns_roce_cmd_mbox(hr_dev, 0, mailbox->dma, hr_qp->qpn, 0, + HNS_ROCE_CMD_QUERY_QP, + HNS_ROCE_CMD_TIME_CLASS_A); + if (!ret) + memcpy(hr_context, mailbox->buf, sizeof(*hr_context)); + else + dev_err(&hr_dev->pdev->dev, "QUERY QP cmd process error\n"); + + hns_roce_free_cmd_mailbox(hr_dev, mailbox); + + return ret; +} + +int hns_roce_v1_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, + int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr) +{ + struct hns_roce_dev *hr_dev = to_hr_dev(ibqp->device); + struct hns_roce_qp *hr_qp = to_hr_qp(ibqp); + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_qp_context *context; + int tmp_qp_state = 0; + int ret = 0; + int state; + + context = kzalloc(sizeof(*context), GFP_KERNEL); + if (!context) + return -ENOMEM; + + memset(qp_attr, 0, sizeof(*qp_attr)); + memset(qp_init_attr, 0, sizeof(*qp_init_attr)); + + mutex_lock(&hr_qp->mutex); + + if (hr_qp->state == IB_QPS_RESET) { + qp_attr->qp_state = IB_QPS_RESET; + goto done; + } + + ret = hns_roce_v1_query_qpc(hr_dev, hr_qp, context); + if (ret) { + dev_err(dev, "query qpc error\n"); + ret = -EINVAL; + goto out; + } + + state = roce_get_field(context->qpc_bytes_144, + QP_CONTEXT_QPC_BYTES_144_QP_STATE_M, + QP_CONTEXT_QPC_BYTES_144_QP_STATE_S); + tmp_qp_state = (int)to_ib_qp_state((enum hns_roce_qp_state)state); + if (tmp_qp_state == -1) { + dev_err(dev, "to_ib_qp_state error\n"); + ret = -EINVAL; + goto out; + } + hr_qp->state = (u8)tmp_qp_state; + qp_attr->qp_state = (enum ib_qp_state)hr_qp->state; + qp_attr->path_mtu = (enum ib_mtu)roce_get_field(context->qpc_bytes_48, + QP_CONTEXT_QPC_BYTES_48_MTU_M, + QP_CONTEXT_QPC_BYTES_48_MTU_S); + qp_attr->path_mig_state = IB_MIG_ARMED; + if (hr_qp->ibqp.qp_type == IB_QPT_UD) + qp_attr->qkey = QKEY_VAL; + + qp_attr->rq_psn = roce_get_field(context->qpc_bytes_88, + QP_CONTEXT_QPC_BYTES_88_RX_REQ_EPSN_M, + QP_CONTEXT_QPC_BYTES_88_RX_REQ_EPSN_S); + qp_attr->sq_psn = (u32)roce_get_field(context->qpc_bytes_164, + QP_CONTEXT_QPC_BYTES_164_SQ_PSN_M, + QP_CONTEXT_QPC_BYTES_164_SQ_PSN_S); + qp_attr->dest_qp_num = (u8)roce_get_field(context->qpc_bytes_36, + QP_CONTEXT_QPC_BYTES_36_DEST_QP_M, + QP_CONTEXT_QPC_BYTES_36_DEST_QP_S); + qp_attr->qp_access_flags = ((roce_get_bit(context->qpc_bytes_4, + QP_CONTEXT_QPC_BYTE_4_RDMA_READ_ENABLE_S)) << 2) | + ((roce_get_bit(context->qpc_bytes_4, + QP_CONTEXT_QPC_BYTE_4_RDMA_WRITE_ENABLE_S)) << 1) | + ((roce_get_bit(context->qpc_bytes_4, + QP_CONTEXT_QPC_BYTE_4_ATOMIC_OPERATION_ENABLE_S)) << 3); + + if (hr_qp->ibqp.qp_type == IB_QPT_RC || + hr_qp->ibqp.qp_type == IB_QPT_UC) { + qp_attr->ah_attr.sl = roce_get_field(context->qpc_bytes_156, + QP_CONTEXT_QPC_BYTES_156_SL_M, + QP_CONTEXT_QPC_BYTES_156_SL_S); + qp_attr->ah_attr.grh.flow_label = roce_get_field( + context->qpc_bytes_48, + QP_CONTEXT_QPC_BYTES_48_FLOWLABEL_M, + QP_CONTEXT_QPC_BYTES_48_FLOWLABEL_S); + qp_attr->ah_attr.grh.sgid_index = roce_get_field( + context->qpc_bytes_36, + QP_CONTEXT_QPC_BYTES_36_SGID_INDEX_M, + QP_CONTEXT_QPC_BYTES_36_SGID_INDEX_S); + qp_attr->ah_attr.grh.hop_limit = roce_get_field( + context->qpc_bytes_44, + QP_CONTEXT_QPC_BYTES_44_HOPLMT_M, + QP_CONTEXT_QPC_BYTES_44_HOPLMT_S); + qp_attr->ah_attr.grh.traffic_class = roce_get_field( + context->qpc_bytes_48, + QP_CONTEXT_QPC_BYTES_48_TCLASS_M, + QP_CONTEXT_QPC_BYTES_48_TCLASS_S); + + memcpy(qp_attr->ah_attr.grh.dgid.raw, context->dgid, + sizeof(qp_attr->ah_attr.grh.dgid.raw)); + } + + qp_attr->pkey_index = roce_get_field(context->qpc_bytes_12, + QP_CONTEXT_QPC_BYTES_12_P_KEY_INDEX_M, + QP_CONTEXT_QPC_BYTES_12_P_KEY_INDEX_S); + qp_attr->port_num = (u8)roce_get_field(context->qpc_bytes_156, + QP_CONTEXT_QPC_BYTES_156_PORT_NUM_M, + QP_CONTEXT_QPC_BYTES_156_PORT_NUM_S) + 1; + qp_attr->sq_draining = 0; + qp_attr->max_rd_atomic = roce_get_field(context->qpc_bytes_156, + QP_CONTEXT_QPC_BYTES_156_INITIATOR_DEPTH_M, + QP_CONTEXT_QPC_BYTES_156_INITIATOR_DEPTH_S); + qp_attr->max_dest_rd_atomic = roce_get_field(context->qpc_bytes_32, + QP_CONTEXT_QPC_BYTES_32_RESPONDER_RESOURCES_M, + QP_CONTEXT_QPC_BYTES_32_RESPONDER_RESOURCES_S); + qp_attr->min_rnr_timer = (u8)(roce_get_field(context->qpc_bytes_24, + QP_CONTEXT_QPC_BYTES_24_MINIMUM_RNR_NAK_TIMER_M, + QP_CONTEXT_QPC_BYTES_24_MINIMUM_RNR_NAK_TIMER_S)); + qp_attr->timeout = (u8)(roce_get_field(context->qpc_bytes_156, + QP_CONTEXT_QPC_BYTES_156_ACK_TIMEOUT_M, + QP_CONTEXT_QPC_BYTES_156_ACK_TIMEOUT_S)); + qp_attr->retry_cnt = roce_get_field(context->qpc_bytes_148, + QP_CONTEXT_QPC_BYTES_148_RETRY_COUNT_M, + QP_CONTEXT_QPC_BYTES_148_RETRY_COUNT_S); + qp_attr->rnr_retry = context->rnr_retry; + +done: + qp_attr->cur_qp_state = qp_attr->qp_state; + qp_attr->cap.max_recv_wr = hr_qp->rq.wqe_cnt; + qp_attr->cap.max_recv_sge = hr_qp->rq.max_gs; + + if (!ibqp->uobject) { + qp_attr->cap.max_send_wr = hr_qp->sq.wqe_cnt; + qp_attr->cap.max_send_sge = hr_qp->sq.max_gs; + } else { + qp_attr->cap.max_send_wr = 0; + qp_attr->cap.max_send_sge = 0; + } + + qp_init_attr->cap = qp_attr->cap; + +out: + mutex_unlock(&hr_qp->mutex); + kfree(context); + return ret; +} + +static void hns_roce_v1_destroy_qp_common(struct hns_roce_dev *hr_dev, + struct hns_roce_qp *hr_qp, + int is_user) +{ + u32 sdbinvcnt; + unsigned long end = 0; + u32 sdbinvcnt_val; + u32 sdbsendptr_val; + u32 sdbisusepr_val; + struct hns_roce_cq *send_cq, *recv_cq; + struct device *dev = &hr_dev->pdev->dev; + + if (hr_qp->ibqp.qp_type == IB_QPT_RC) { + if (hr_qp->state != IB_QPS_RESET) { + /* + * Set qp to ERR, + * waiting for hw complete processing all dbs + */ + if (hns_roce_v1_qp_modify(hr_dev, NULL, + to_hns_roce_state( + (enum ib_qp_state)hr_qp->state), + HNS_ROCE_QP_STATE_ERR, NULL, + hr_qp)) + dev_err(dev, "modify QP %06lx to ERR failed.\n", + hr_qp->qpn); + + /* Record issued doorbell */ + sdbisusepr_val = roce_read(hr_dev, + ROCEE_SDB_ISSUE_PTR_REG); + /* + * Query db process status, + * until hw process completely + */ + end = msecs_to_jiffies( + HNS_ROCE_QP_DESTROY_TIMEOUT_MSECS) + jiffies; + do { + sdbsendptr_val = roce_read(hr_dev, + ROCEE_SDB_SEND_PTR_REG); + if (!time_before(jiffies, end)) { + dev_err(dev, "destroy qp(0x%lx) timeout!!!", + hr_qp->qpn); + break; + } + } while ((short)(roce_get_field(sdbsendptr_val, + ROCEE_SDB_SEND_PTR_SDB_SEND_PTR_M, + ROCEE_SDB_SEND_PTR_SDB_SEND_PTR_S) - + roce_get_field(sdbisusepr_val, + ROCEE_SDB_ISSUE_PTR_SDB_ISSUE_PTR_M, + ROCEE_SDB_ISSUE_PTR_SDB_ISSUE_PTR_S) + ) < 0); + + /* Get list pointer */ + sdbinvcnt = roce_read(hr_dev, ROCEE_SDB_INV_CNT_REG); + + /* Query db's list status, until hw reversal */ + do { + sdbinvcnt_val = roce_read(hr_dev, + ROCEE_SDB_INV_CNT_REG); + if (!time_before(jiffies, end)) { + dev_err(dev, "destroy qp(0x%lx) timeout!!!", + hr_qp->qpn); + dev_err(dev, "SdbInvCnt = 0x%x\n", + sdbinvcnt_val); + break; + } + } while ((short)(roce_get_field(sdbinvcnt_val, + ROCEE_SDB_INV_CNT_SDB_INV_CNT_M, + ROCEE_SDB_INV_CNT_SDB_INV_CNT_S) - + (sdbinvcnt + SDB_INV_CNT_OFFSET)) < 0); + + /* Modify qp to reset before destroying qp */ + if (hns_roce_v1_qp_modify(hr_dev, NULL, + to_hns_roce_state( + (enum ib_qp_state)hr_qp->state), + HNS_ROCE_QP_STATE_RST, NULL, hr_qp)) + dev_err(dev, "modify QP %06lx to RESET failed.\n", + hr_qp->qpn); + } + } + + send_cq = to_hr_cq(hr_qp->ibqp.send_cq); + recv_cq = to_hr_cq(hr_qp->ibqp.recv_cq); + + hns_roce_lock_cqs(send_cq, recv_cq); + + if (!is_user) { + __hns_roce_v1_cq_clean(recv_cq, hr_qp->qpn, hr_qp->ibqp.srq ? + to_hr_srq(hr_qp->ibqp.srq) : NULL); + if (send_cq != recv_cq) + __hns_roce_v1_cq_clean(send_cq, hr_qp->qpn, NULL); + } + + hns_roce_qp_remove(hr_dev, hr_qp); + + hns_roce_unlock_cqs(send_cq, recv_cq); + + hns_roce_qp_free(hr_dev, hr_qp); + + /* Not special_QP, free their QPN */ + if ((hr_qp->ibqp.qp_type == IB_QPT_RC) || + (hr_qp->ibqp.qp_type == IB_QPT_UC) || + (hr_qp->ibqp.qp_type == IB_QPT_UD)) + hns_roce_release_range_qp(hr_dev, hr_qp->qpn, 1); + + hns_roce_mtt_cleanup(hr_dev, &hr_qp->mtt); + + if (is_user) { + ib_umem_release(hr_qp->umem); + } else { + kfree(hr_qp->sq.wrid); + kfree(hr_qp->rq.wrid); + hns_roce_buf_free(hr_dev, hr_qp->buff_size, &hr_qp->hr_buf); + } +} + +int hns_roce_v1_destroy_qp(struct ib_qp *ibqp) +{ + struct hns_roce_dev *hr_dev = to_hr_dev(ibqp->device); + struct hns_roce_qp *hr_qp = to_hr_qp(ibqp); + + hns_roce_v1_destroy_qp_common(hr_dev, hr_qp, !!ibqp->pd->uobject); + + if (hr_qp->ibqp.qp_type == IB_QPT_GSI) + kfree(hr_to_hr_sqp(hr_qp)); + else + kfree(hr_qp); + + return 0; +} + +struct hns_roce_v1_priv hr_v1_priv; + +struct hns_roce_hw hns_roce_hw_v1 = { + .reset = hns_roce_v1_reset, + .hw_profile = hns_roce_v1_profile, + .hw_init = hns_roce_v1_init, + .hw_exit = hns_roce_v1_exit, + .set_gid = hns_roce_v1_set_gid, + .set_mac = hns_roce_v1_set_mac, + .set_mtu = hns_roce_v1_set_mtu, + .write_mtpt = hns_roce_v1_write_mtpt, + .write_cqc = hns_roce_v1_write_cqc, + .modify_qp = hns_roce_v1_modify_qp, + .query_qp = hns_roce_v1_query_qp, + .destroy_qp = hns_roce_v1_destroy_qp, + .post_send = hns_roce_v1_post_send, + .post_recv = hns_roce_v1_post_recv, + .req_notify_cq = hns_roce_v1_req_notify_cq, + .poll_cq = hns_roce_v1_poll_cq, + .priv = &hr_v1_priv, +}; diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v1.h b/drivers/infiniband/hw/hns/hns_roce_hw_v1.h new file mode 100644 index 000000000000..2b3bf212570b --- /dev/null +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v1.h @@ -0,0 +1,981 @@ +/* + * Copyright (c) 2016 Hisilicon Limited. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef _HNS_ROCE_HW_V1_H +#define _HNS_ROCE_HW_V1_H + +#define CQ_STATE_VALID 2 + +#define HNS_ROCE_V1_MAX_PD_NUM 0x8000 +#define HNS_ROCE_V1_MAX_CQ_NUM 0x10000 +#define HNS_ROCE_V1_MAX_CQE_NUM 0x8000 + +#define HNS_ROCE_V1_MAX_QP_NUM 0x40000 +#define HNS_ROCE_V1_MAX_WQE_NUM 0x4000 + +#define HNS_ROCE_V1_MAX_MTPT_NUM 0x80000 + +#define HNS_ROCE_V1_MAX_MTT_SEGS 0x100000 + +#define HNS_ROCE_V1_MAX_QP_INIT_RDMA 128 +#define HNS_ROCE_V1_MAX_QP_DEST_RDMA 128 + +#define HNS_ROCE_V1_MAX_SQ_DESC_SZ 64 +#define HNS_ROCE_V1_MAX_RQ_DESC_SZ 64 +#define HNS_ROCE_V1_SG_NUM 2 +#define HNS_ROCE_V1_INLINE_SIZE 32 + +#define HNS_ROCE_V1_UAR_NUM 256 +#define HNS_ROCE_V1_PHY_UAR_NUM 8 + +#define HNS_ROCE_V1_GID_NUM 16 + +#define HNS_ROCE_V1_NUM_COMP_EQE 0x8000 +#define HNS_ROCE_V1_NUM_ASYNC_EQE 0x400 + +#define HNS_ROCE_V1_QPC_ENTRY_SIZE 256 +#define HNS_ROCE_V1_IRRL_ENTRY_SIZE 8 +#define HNS_ROCE_V1_CQC_ENTRY_SIZE 64 +#define HNS_ROCE_V1_MTPT_ENTRY_SIZE 64 +#define HNS_ROCE_V1_MTT_ENTRY_SIZE 64 + +#define HNS_ROCE_V1_CQE_ENTRY_SIZE 32 +#define HNS_ROCE_V1_PAGE_SIZE_SUPPORT 0xFFFFF000 + +#define HNS_ROCE_V1_EXT_RAQ_WF 8 +#define HNS_ROCE_V1_RAQ_ENTRY 64 +#define HNS_ROCE_V1_RAQ_DEPTH 32768 +#define HNS_ROCE_V1_RAQ_SIZE (HNS_ROCE_V1_RAQ_ENTRY * HNS_ROCE_V1_RAQ_DEPTH) + +#define HNS_ROCE_V1_SDB_DEPTH 0x400 +#define HNS_ROCE_V1_ODB_DEPTH 0x400 + +#define HNS_ROCE_V1_DB_RSVD 0x80 + +#define HNS_ROCE_V1_SDB_ALEPT HNS_ROCE_V1_DB_RSVD +#define HNS_ROCE_V1_SDB_ALFUL (HNS_ROCE_V1_SDB_DEPTH - HNS_ROCE_V1_DB_RSVD) +#define HNS_ROCE_V1_ODB_ALEPT HNS_ROCE_V1_DB_RSVD +#define HNS_ROCE_V1_ODB_ALFUL (HNS_ROCE_V1_ODB_DEPTH - HNS_ROCE_V1_DB_RSVD) + +#define HNS_ROCE_V1_EXT_SDB_DEPTH 0x4000 +#define HNS_ROCE_V1_EXT_ODB_DEPTH 0x4000 +#define HNS_ROCE_V1_EXT_SDB_ENTRY 16 +#define HNS_ROCE_V1_EXT_ODB_ENTRY 16 +#define HNS_ROCE_V1_EXT_SDB_SIZE \ + (HNS_ROCE_V1_EXT_SDB_DEPTH * HNS_ROCE_V1_EXT_SDB_ENTRY) +#define HNS_ROCE_V1_EXT_ODB_SIZE \ + (HNS_ROCE_V1_EXT_ODB_DEPTH * HNS_ROCE_V1_EXT_ODB_ENTRY) + +#define HNS_ROCE_V1_EXT_SDB_ALEPT HNS_ROCE_V1_DB_RSVD +#define HNS_ROCE_V1_EXT_SDB_ALFUL \ + (HNS_ROCE_V1_EXT_SDB_DEPTH - HNS_ROCE_V1_DB_RSVD) +#define HNS_ROCE_V1_EXT_ODB_ALEPT HNS_ROCE_V1_DB_RSVD +#define HNS_ROCE_V1_EXT_ODB_ALFUL \ + (HNS_ROCE_V1_EXT_ODB_DEPTH - HNS_ROCE_V1_DB_RSVD) + +#define HNS_ROCE_ODB_POLL_MODE 0 + +#define HNS_ROCE_SDB_NORMAL_MODE 0 +#define HNS_ROCE_SDB_EXTEND_MODE 1 + +#define HNS_ROCE_ODB_EXTEND_MODE 1 + +#define KEY_VALID 0x02 + +#define HNS_ROCE_CQE_QPN_MASK 0x3ffff +#define HNS_ROCE_CQE_STATUS_MASK 0x1f +#define HNS_ROCE_CQE_OPCODE_MASK 0xf + +#define HNS_ROCE_CQE_SUCCESS 0x00 +#define HNS_ROCE_CQE_SYNDROME_LOCAL_LENGTH_ERR 0x01 +#define HNS_ROCE_CQE_SYNDROME_LOCAL_QP_OP_ERR 0x02 +#define HNS_ROCE_CQE_SYNDROME_LOCAL_PROT_ERR 0x03 +#define HNS_ROCE_CQE_SYNDROME_WR_FLUSH_ERR 0x04 +#define HNS_ROCE_CQE_SYNDROME_MEM_MANAGE_OPERATE_ERR 0x05 +#define HNS_ROCE_CQE_SYNDROME_BAD_RESP_ERR 0x06 +#define HNS_ROCE_CQE_SYNDROME_LOCAL_ACCESS_ERR 0x07 +#define HNS_ROCE_CQE_SYNDROME_REMOTE_INVAL_REQ_ERR 0x08 +#define HNS_ROCE_CQE_SYNDROME_REMOTE_ACCESS_ERR 0x09 +#define HNS_ROCE_CQE_SYNDROME_REMOTE_OP_ERR 0x0a +#define HNS_ROCE_CQE_SYNDROME_TRANSPORT_RETRY_EXC_ERR 0x0b +#define HNS_ROCE_CQE_SYNDROME_RNR_RETRY_EXC_ERR 0x0c + +#define QP1C_CFGN_OFFSET 0x28 +#define PHY_PORT_OFFSET 0x8 +#define MTPT_IDX_SHIFT 16 +#define ALL_PORT_VAL_OPEN 0x3f +#define POL_TIME_INTERVAL_VAL 0x80 +#define SLEEP_TIME_INTERVAL 20 +#define SQ_PSN_SHIFT 8 +#define QKEY_VAL 0x80010000 +#define SDB_INV_CNT_OFFSET 8 + +struct hns_roce_cq_context { + u32 cqc_byte_4; + u32 cq_bt_l; + u32 cqc_byte_12; + u32 cur_cqe_ba0_l; + u32 cqc_byte_20; + u32 cqe_tptr_addr_l; + u32 cur_cqe_ba1_l; + u32 cqc_byte_32; +}; + +#define CQ_CONTEXT_CQC_BYTE_4_CQC_STATE_S 0 +#define CQ_CONTEXT_CQC_BYTE_4_CQC_STATE_M \ + (((1UL << 2) - 1) << CQ_CONTEXT_CQC_BYTE_4_CQC_STATE_S) + +#define CQ_CONTEXT_CQC_BYTE_4_CQN_S 16 +#define CQ_CONTEXT_CQC_BYTE_4_CQN_M \ + (((1UL << 16) - 1) << CQ_CONTEXT_CQC_BYTE_4_CQN_S) + +#define CQ_CONTEXT_CQC_BYTE_12_CQ_BT_H_S 0 +#define CQ_CONTEXT_CQC_BYTE_12_CQ_BT_H_M \ + (((1UL << 17) - 1) << CQ_CONTEXT_CQC_BYTE_12_CQ_BT_H_S) + +#define CQ_CONTEXT_CQC_BYTE_12_CQ_CQE_SHIFT_S 20 +#define CQ_CONTEXT_CQC_BYTE_12_CQ_CQE_SHIFT_M \ + (((1UL << 4) - 1) << CQ_CONTEXT_CQC_BYTE_12_CQ_CQE_SHIFT_S) + +#define CQ_CONTEXT_CQC_BYTE_12_CEQN_S 24 +#define CQ_CONTEXT_CQC_BYTE_12_CEQN_M \ + (((1UL << 5) - 1) << CQ_CONTEXT_CQC_BYTE_12_CEQN_S) + +#define CQ_CONTEXT_CQC_BYTE_20_CUR_CQE_BA0_H_S 0 +#define CQ_CONTEXT_CQC_BYTE_20_CUR_CQE_BA0_H_M \ + (((1UL << 5) - 1) << CQ_CONTEXT_CQC_BYTE_20_CUR_CQE_BA0_H_S) + +#define CQ_CONTEXT_CQC_BYTE_20_CQ_CUR_INDEX_S 16 +#define CQ_CONTEXT_CQC_BYTE_20_CQ_CUR_INDEX_M \ + (((1UL << 16) - 1) << CQ_CONTEXT_CQC_BYTE_20_CQ_CUR_INDEX_S) + +#define CQ_CONTEXT_CQC_BYTE_20_CQE_TPTR_ADDR_H_S 8 +#define CQ_CONTEXT_CQC_BYTE_20_CQE_TPTR_ADDR_H_M \ + (((1UL << 5) - 1) << CQ_CONTEXT_CQC_BYTE_20_CQE_TPTR_ADDR_H_S) + +#define CQ_CONTEXT_CQC_BYTE_32_CUR_CQE_BA1_H_S 0 +#define CQ_CONTEXT_CQC_BYTE_32_CUR_CQE_BA1_H_M \ + (((1UL << 5) - 1) << CQ_CONTEXT_CQC_BYTE_32_CUR_CQE_BA1_H_S) + +#define CQ_CONTEXT_CQC_BYTE_32_SE_FLAG_S 9 + +#define CQ_CONTEXT_CQC_BYTE_32_CE_FLAG_S 8 +#define CQ_CONTEXT_CQC_BYTE_32_NOTIFICATION_FLAG_S 14 +#define CQ_CQNTEXT_CQC_BYTE_32_TYPE_OF_COMPLETION_NOTIFICATION_S 15 + +#define CQ_CONTEXT_CQC_BYTE_32_CQ_CONS_IDX_S 16 +#define CQ_CONTEXT_CQC_BYTE_32_CQ_CONS_IDX_M \ + (((1UL << 16) - 1) << CQ_CONTEXT_CQC_BYTE_32_CQ_CONS_IDX_S) + +struct hns_roce_cqe { + u32 cqe_byte_4; + union { + u32 r_key; + u32 immediate_data; + }; + u32 byte_cnt; + u32 cqe_byte_16; + u32 cqe_byte_20; + u32 s_mac_l; + u32 cqe_byte_28; + u32 reserved; +}; + +#define CQE_BYTE_4_OWNER_S 7 +#define CQE_BYTE_4_SQ_RQ_FLAG_S 14 + +#define CQE_BYTE_4_STATUS_OF_THE_OPERATION_S 8 +#define CQE_BYTE_4_STATUS_OF_THE_OPERATION_M \ + (((1UL << 5) - 1) << CQE_BYTE_4_STATUS_OF_THE_OPERATION_S) + +#define CQE_BYTE_4_WQE_INDEX_S 16 +#define CQE_BYTE_4_WQE_INDEX_M (((1UL << 14) - 1) << CQE_BYTE_4_WQE_INDEX_S) + +#define CQE_BYTE_4_OPERATION_TYPE_S 0 +#define CQE_BYTE_4_OPERATION_TYPE_M \ + (((1UL << 4) - 1) << CQE_BYTE_4_OPERATION_TYPE_S) + +#define CQE_BYTE_4_IMM_INDICATOR_S 15 + +#define CQE_BYTE_16_LOCAL_QPN_S 0 +#define CQE_BYTE_16_LOCAL_QPN_M (((1UL << 24) - 1) << CQE_BYTE_16_LOCAL_QPN_S) + +#define CQE_BYTE_20_PORT_NUM_S 26 +#define CQE_BYTE_20_PORT_NUM_M (((1UL << 3) - 1) << CQE_BYTE_20_PORT_NUM_S) + +#define CQE_BYTE_20_SL_S 24 +#define CQE_BYTE_20_SL_M (((1UL << 2) - 1) << CQE_BYTE_20_SL_S) + +#define CQE_BYTE_20_REMOTE_QPN_S 0 +#define CQE_BYTE_20_REMOTE_QPN_M \ + (((1UL << 24) - 1) << CQE_BYTE_20_REMOTE_QPN_S) + +#define CQE_BYTE_20_GRH_PRESENT_S 29 + +#define CQE_BYTE_28_P_KEY_IDX_S 16 +#define CQE_BYTE_28_P_KEY_IDX_M (((1UL << 16) - 1) << CQE_BYTE_28_P_KEY_IDX_S) + +#define CQ_DB_REQ_NOT_SOL 0 +#define CQ_DB_REQ_NOT (1 << 16) + +struct hns_roce_v1_mpt_entry { + u32 mpt_byte_4; + u32 pbl_addr_l; + u32 mpt_byte_12; + u32 virt_addr_l; + u32 virt_addr_h; + u32 length; + u32 mpt_byte_28; + u32 pa0_l; + u32 mpt_byte_36; + u32 mpt_byte_40; + u32 mpt_byte_44; + u32 mpt_byte_48; + u32 pa4_l; + u32 mpt_byte_56; + u32 mpt_byte_60; + u32 mpt_byte_64; +}; + +#define MPT_BYTE_4_KEY_STATE_S 0 +#define MPT_BYTE_4_KEY_STATE_M (((1UL << 2) - 1) << MPT_BYTE_4_KEY_STATE_S) + +#define MPT_BYTE_4_KEY_S 8 +#define MPT_BYTE_4_KEY_M (((1UL << 8) - 1) << MPT_BYTE_4_KEY_S) + +#define MPT_BYTE_4_PAGE_SIZE_S 16 +#define MPT_BYTE_4_PAGE_SIZE_M (((1UL << 2) - 1) << MPT_BYTE_4_PAGE_SIZE_S) + +#define MPT_BYTE_4_MW_TYPE_S 20 + +#define MPT_BYTE_4_MW_BIND_ENABLE_S 21 + +#define MPT_BYTE_4_OWN_S 22 + +#define MPT_BYTE_4_MEMORY_LOCATION_TYPE_S 24 +#define MPT_BYTE_4_MEMORY_LOCATION_TYPE_M \ + (((1UL << 2) - 1) << MPT_BYTE_4_MEMORY_LOCATION_TYPE_S) + +#define MPT_BYTE_4_REMOTE_ATOMIC_S 26 +#define MPT_BYTE_4_LOCAL_WRITE_S 27 +#define MPT_BYTE_4_REMOTE_WRITE_S 28 +#define MPT_BYTE_4_REMOTE_READ_S 29 +#define MPT_BYTE_4_REMOTE_INVAL_ENABLE_S 30 +#define MPT_BYTE_4_ADDRESS_TYPE_S 31 + +#define MPT_BYTE_12_PBL_ADDR_H_S 0 +#define MPT_BYTE_12_PBL_ADDR_H_M \ + (((1UL << 17) - 1) << MPT_BYTE_12_PBL_ADDR_H_S) + +#define MPT_BYTE_12_MW_BIND_COUNTER_S 17 +#define MPT_BYTE_12_MW_BIND_COUNTER_M \ + (((1UL << 15) - 1) << MPT_BYTE_12_MW_BIND_COUNTER_S) + +#define MPT_BYTE_28_PD_S 0 +#define MPT_BYTE_28_PD_M (((1UL << 16) - 1) << MPT_BYTE_28_PD_S) + +#define MPT_BYTE_28_L_KEY_IDX_L_S 16 +#define MPT_BYTE_28_L_KEY_IDX_L_M \ + (((1UL << 16) - 1) << MPT_BYTE_28_L_KEY_IDX_L_S) + +#define MPT_BYTE_36_PA0_H_S 0 +#define MPT_BYTE_36_PA0_H_M (((1UL << 5) - 1) << MPT_BYTE_36_PA0_H_S) + +#define MPT_BYTE_36_PA1_L_S 8 +#define MPT_BYTE_36_PA1_L_M (((1UL << 24) - 1) << MPT_BYTE_36_PA1_L_S) + +#define MPT_BYTE_40_PA1_H_S 0 +#define MPT_BYTE_40_PA1_H_M (((1UL << 13) - 1) << MPT_BYTE_40_PA1_H_S) + +#define MPT_BYTE_40_PA2_L_S 16 +#define MPT_BYTE_40_PA2_L_M (((1UL << 16) - 1) << MPT_BYTE_40_PA2_L_S) + +#define MPT_BYTE_44_PA2_H_S 0 +#define MPT_BYTE_44_PA2_H_M (((1UL << 21) - 1) << MPT_BYTE_44_PA2_H_S) + +#define MPT_BYTE_44_PA3_L_S 24 +#define MPT_BYTE_44_PA3_L_M (((1UL << 8) - 1) << MPT_BYTE_44_PA3_L_S) + +#define MPT_BYTE_48_PA3_H_S 0 +#define MPT_BYTE_48_PA3_H_M (((1UL << 29) - 1) << MPT_BYTE_48_PA3_H_S) + +#define MPT_BYTE_56_PA4_H_S 0 +#define MPT_BYTE_56_PA4_H_M (((1UL << 5) - 1) << MPT_BYTE_56_PA4_H_S) + +#define MPT_BYTE_56_PA5_L_S 8 +#define MPT_BYTE_56_PA5_L_M (((1UL << 24) - 1) << MPT_BYTE_56_PA5_L_S) + +#define MPT_BYTE_60_PA5_H_S 0 +#define MPT_BYTE_60_PA5_H_M (((1UL << 13) - 1) << MPT_BYTE_60_PA5_H_S) + +#define MPT_BYTE_60_PA6_L_S 16 +#define MPT_BYTE_60_PA6_L_M (((1UL << 16) - 1) << MPT_BYTE_60_PA6_L_S) + +#define MPT_BYTE_64_PA6_H_S 0 +#define MPT_BYTE_64_PA6_H_M (((1UL << 21) - 1) << MPT_BYTE_64_PA6_H_S) + +#define MPT_BYTE_64_L_KEY_IDX_H_S 24 +#define MPT_BYTE_64_L_KEY_IDX_H_M \ + (((1UL << 8) - 1) << MPT_BYTE_64_L_KEY_IDX_H_S) + +struct hns_roce_wqe_ctrl_seg { + __be32 sgl_pa_h; + __be32 flag; + __be32 imm_data; + __be32 msg_length; +}; + +struct hns_roce_wqe_data_seg { + __be64 addr; + __be32 lkey; + __be32 len; +}; + +struct hns_roce_wqe_raddr_seg { + __be32 rkey; + __be32 len;/* reserved */ + __be64 raddr; +}; + +struct hns_roce_rq_wqe_ctrl { + + u32 rwqe_byte_4; + u32 rocee_sgl_ba_l; + u32 rwqe_byte_12; + u32 reserved[5]; +}; + +#define RQ_WQE_CTRL_RWQE_BYTE_12_RWQE_SGE_NUM_S 16 +#define RQ_WQE_CTRL_RWQE_BYTE_12_RWQE_SGE_NUM_M \ + (((1UL << 6) - 1) << RQ_WQE_CTRL_RWQE_BYTE_12_RWQE_SGE_NUM_S) + +#define HNS_ROCE_QP_DESTROY_TIMEOUT_MSECS 10000 + +#define GID_LEN 16 + +struct hns_roce_ud_send_wqe { + u32 dmac_h; + u32 u32_8; + u32 immediate_data; + + u32 u32_16; + union { + unsigned char dgid[GID_LEN]; + struct { + u32 u32_20; + u32 u32_24; + u32 u32_28; + u32 u32_32; + }; + }; + + u32 u32_36; + u32 u32_40; + + u32 va0_l; + u32 va0_h; + u32 l_key0; + + u32 va1_l; + u32 va1_h; + u32 l_key1; +}; + +#define UD_SEND_WQE_U32_4_DMAC_0_S 0 +#define UD_SEND_WQE_U32_4_DMAC_0_M \ + (((1UL << 8) - 1) << UD_SEND_WQE_U32_4_DMAC_0_S) + +#define UD_SEND_WQE_U32_4_DMAC_1_S 8 +#define UD_SEND_WQE_U32_4_DMAC_1_M \ + (((1UL << 8) - 1) << UD_SEND_WQE_U32_4_DMAC_1_S) + +#define UD_SEND_WQE_U32_4_DMAC_2_S 16 +#define UD_SEND_WQE_U32_4_DMAC_2_M \ + (((1UL << 8) - 1) << UD_SEND_WQE_U32_4_DMAC_2_S) + +#define UD_SEND_WQE_U32_4_DMAC_3_S 24 +#define UD_SEND_WQE_U32_4_DMAC_3_M \ + (((1UL << 8) - 1) << UD_SEND_WQE_U32_4_DMAC_3_S) + +#define UD_SEND_WQE_U32_8_DMAC_4_S 0 +#define UD_SEND_WQE_U32_8_DMAC_4_M \ + (((1UL << 8) - 1) << UD_SEND_WQE_U32_8_DMAC_4_S) + +#define UD_SEND_WQE_U32_8_DMAC_5_S 8 +#define UD_SEND_WQE_U32_8_DMAC_5_M \ + (((1UL << 8) - 1) << UD_SEND_WQE_U32_8_DMAC_5_S) + +#define UD_SEND_WQE_U32_8_OPERATION_TYPE_S 16 +#define UD_SEND_WQE_U32_8_OPERATION_TYPE_M \ + (((1UL << 4) - 1) << UD_SEND_WQE_U32_8_OPERATION_TYPE_S) + +#define UD_SEND_WQE_U32_8_NUMBER_OF_DATA_SEG_S 24 +#define UD_SEND_WQE_U32_8_NUMBER_OF_DATA_SEG_M \ + (((1UL << 6) - 1) << UD_SEND_WQE_U32_8_NUMBER_OF_DATA_SEG_S) + +#define UD_SEND_WQE_U32_8_SEND_GL_ROUTING_HDR_FLAG_S 31 + +#define UD_SEND_WQE_U32_16_DEST_QP_S 0 +#define UD_SEND_WQE_U32_16_DEST_QP_M \ + (((1UL << 24) - 1) << UD_SEND_WQE_U32_16_DEST_QP_S) + +#define UD_SEND_WQE_U32_16_MAX_STATIC_RATE_S 24 +#define UD_SEND_WQE_U32_16_MAX_STATIC_RATE_M \ + (((1UL << 8) - 1) << UD_SEND_WQE_U32_16_MAX_STATIC_RATE_S) + +#define UD_SEND_WQE_U32_36_FLOW_LABEL_S 0 +#define UD_SEND_WQE_U32_36_FLOW_LABEL_M \ + (((1UL << 20) - 1) << UD_SEND_WQE_U32_36_FLOW_LABEL_S) + +#define UD_SEND_WQE_U32_36_PRIORITY_S 20 +#define UD_SEND_WQE_U32_36_PRIORITY_M \ + (((1UL << 4) - 1) << UD_SEND_WQE_U32_36_PRIORITY_S) + +#define UD_SEND_WQE_U32_36_SGID_INDEX_S 24 +#define UD_SEND_WQE_U32_36_SGID_INDEX_M \ + (((1UL << 8) - 1) << UD_SEND_WQE_U32_36_SGID_INDEX_S) + +#define UD_SEND_WQE_U32_40_HOP_LIMIT_S 0 +#define UD_SEND_WQE_U32_40_HOP_LIMIT_M \ + (((1UL << 8) - 1) << UD_SEND_WQE_U32_40_HOP_LIMIT_S) + +#define UD_SEND_WQE_U32_40_TRAFFIC_CLASS_S 8 +#define UD_SEND_WQE_U32_40_TRAFFIC_CLASS_M \ + (((1UL << 8) - 1) << UD_SEND_WQE_U32_40_TRAFFIC_CLASS_S) + +struct hns_roce_sqp_context { + u32 qp1c_bytes_4; + u32 sq_rq_bt_l; + u32 qp1c_bytes_12; + u32 qp1c_bytes_16; + u32 qp1c_bytes_20; + u32 qp1c_bytes_28; + u32 cur_rq_wqe_ba_l; + u32 qp1c_bytes_32; + u32 cur_sq_wqe_ba_l; + u32 qp1c_bytes_40; +}; + +#define QP1C_BYTES_4_SQ_WQE_SHIFT_S 8 +#define QP1C_BYTES_4_SQ_WQE_SHIFT_M \ + (((1UL << 4) - 1) << QP1C_BYTES_4_SQ_WQE_SHIFT_S) + +#define QP1C_BYTES_4_RQ_WQE_SHIFT_S 12 +#define QP1C_BYTES_4_RQ_WQE_SHIFT_M \ + (((1UL << 4) - 1) << QP1C_BYTES_4_RQ_WQE_SHIFT_S) + +#define QP1C_BYTES_4_PD_S 16 +#define QP1C_BYTES_4_PD_M (((1UL << 16) - 1) << QP1C_BYTES_4_PD_S) + +#define QP1C_BYTES_12_SQ_RQ_BT_H_S 0 +#define QP1C_BYTES_12_SQ_RQ_BT_H_M \ + (((1UL << 17) - 1) << QP1C_BYTES_12_SQ_RQ_BT_H_S) + +#define QP1C_BYTES_16_RQ_HEAD_S 0 +#define QP1C_BYTES_16_RQ_HEAD_M (((1UL << 15) - 1) << QP1C_BYTES_16_RQ_HEAD_S) + +#define QP1C_BYTES_16_PORT_NUM_S 16 +#define QP1C_BYTES_16_PORT_NUM_M \ + (((1UL << 3) - 1) << QP1C_BYTES_16_PORT_NUM_S) + +#define QP1C_BYTES_16_SIGNALING_TYPE_S 27 +#define QP1C_BYTES_16_LOCAL_ENABLE_E2E_CREDIT_S 28 +#define QP1C_BYTES_16_RQ_BA_FLG_S 29 +#define QP1C_BYTES_16_SQ_BA_FLG_S 30 +#define QP1C_BYTES_16_QP1_ERR_S 31 + +#define QP1C_BYTES_20_SQ_HEAD_S 0 +#define QP1C_BYTES_20_SQ_HEAD_M (((1UL << 15) - 1) << QP1C_BYTES_20_SQ_HEAD_S) + +#define QP1C_BYTES_20_PKEY_IDX_S 16 +#define QP1C_BYTES_20_PKEY_IDX_M \ + (((1UL << 16) - 1) << QP1C_BYTES_20_PKEY_IDX_S) + +#define QP1C_BYTES_28_CUR_RQ_WQE_BA_H_S 0 +#define QP1C_BYTES_28_CUR_RQ_WQE_BA_H_M \ + (((1UL << 5) - 1) << QP1C_BYTES_28_CUR_RQ_WQE_BA_H_S) + +#define QP1C_BYTES_28_RQ_CUR_IDX_S 16 +#define QP1C_BYTES_28_RQ_CUR_IDX_M \ + (((1UL << 15) - 1) << QP1C_BYTES_28_RQ_CUR_IDX_S) + +#define QP1C_BYTES_32_TX_CQ_NUM_S 0 +#define QP1C_BYTES_32_TX_CQ_NUM_M \ + (((1UL << 16) - 1) << QP1C_BYTES_32_TX_CQ_NUM_S) + +#define QP1C_BYTES_32_RX_CQ_NUM_S 16 +#define QP1C_BYTES_32_RX_CQ_NUM_M \ + (((1UL << 16) - 1) << QP1C_BYTES_32_RX_CQ_NUM_S) + +#define QP1C_BYTES_40_CUR_SQ_WQE_BA_H_S 0 +#define QP1C_BYTES_40_CUR_SQ_WQE_BA_H_M \ + (((1UL << 5) - 1) << QP1C_BYTES_40_CUR_SQ_WQE_BA_H_S) + +#define QP1C_BYTES_40_SQ_CUR_IDX_S 16 +#define QP1C_BYTES_40_SQ_CUR_IDX_M \ + (((1UL << 15) - 1) << QP1C_BYTES_40_SQ_CUR_IDX_S) + +#define HNS_ROCE_WQE_INLINE (1UL<<31) +#define HNS_ROCE_WQE_SE (1UL<<30) + +#define HNS_ROCE_WQE_SGE_NUM_BIT 24 +#define HNS_ROCE_WQE_IMM (1UL<<23) +#define HNS_ROCE_WQE_FENCE (1UL<<21) +#define HNS_ROCE_WQE_CQ_NOTIFY (1UL<<20) + +#define HNS_ROCE_WQE_OPCODE_SEND (0<<16) +#define HNS_ROCE_WQE_OPCODE_RDMA_READ (1<<16) +#define HNS_ROCE_WQE_OPCODE_RDMA_WRITE (2<<16) +#define HNS_ROCE_WQE_OPCODE_LOCAL_INV (4<<16) +#define HNS_ROCE_WQE_OPCODE_UD_SEND (7<<16) +#define HNS_ROCE_WQE_OPCODE_MASK (15<<16) + +struct hns_roce_qp_context { + u32 qpc_bytes_4; + u32 qpc_bytes_8; + u32 qpc_bytes_12; + u32 qpc_bytes_16; + u32 sq_rq_bt_l; + u32 qpc_bytes_24; + u32 irrl_ba_l; + u32 qpc_bytes_32; + u32 qpc_bytes_36; + u32 dmac_l; + u32 qpc_bytes_44; + u32 qpc_bytes_48; + u8 dgid[16]; + u32 qpc_bytes_68; + u32 cur_rq_wqe_ba_l; + u32 qpc_bytes_76; + u32 rx_rnr_time; + u32 qpc_bytes_84; + u32 qpc_bytes_88; + union { + u32 rx_sge_len; + u32 dma_length; + }; + union { + u32 rx_sge_num; + u32 rx_send_pktn; + u32 r_key; + }; + u32 va_l; + u32 va_h; + u32 qpc_bytes_108; + u32 qpc_bytes_112; + u32 rx_cur_sq_wqe_ba_l; + u32 qpc_bytes_120; + u32 qpc_bytes_124; + u32 qpc_bytes_128; + u32 qpc_bytes_132; + u32 qpc_bytes_136; + u32 qpc_bytes_140; + u32 qpc_bytes_144; + u32 qpc_bytes_148; + union { + u32 rnr_retry; + u32 ack_time; + }; + u32 qpc_bytes_156; + u32 pkt_use_len; + u32 qpc_bytes_164; + u32 qpc_bytes_168; + union { + u32 sge_use_len; + u32 pa_use_len; + }; + u32 qpc_bytes_176; + u32 qpc_bytes_180; + u32 tx_cur_sq_wqe_ba_l; + u32 qpc_bytes_188; + u32 rvd21; +}; + +#define QP_CONTEXT_QPC_BYTES_4_TRANSPORT_SERVICE_TYPE_S 0 +#define QP_CONTEXT_QPC_BYTES_4_TRANSPORT_SERVICE_TYPE_M \ + (((1UL << 3) - 1) << QP_CONTEXT_QPC_BYTES_4_TRANSPORT_SERVICE_TYPE_S) + +#define QP_CONTEXT_QPC_BYTE_4_ENABLE_FPMR_S 3 +#define QP_CONTEXT_QPC_BYTE_4_RDMA_READ_ENABLE_S 4 +#define QP_CONTEXT_QPC_BYTE_4_RDMA_WRITE_ENABLE_S 5 +#define QP_CONTEXT_QPC_BYTE_4_ATOMIC_OPERATION_ENABLE_S 6 +#define QP_CONTEXT_QPC_BYTE_4_RDMAR_USE_S 7 + +#define QP_CONTEXT_QPC_BYTES_4_SQ_WQE_SHIFT_S 8 +#define QP_CONTEXT_QPC_BYTES_4_SQ_WQE_SHIFT_M \ + (((1UL << 4) - 1) << QP_CONTEXT_QPC_BYTES_4_SQ_WQE_SHIFT_S) + +#define QP_CONTEXT_QPC_BYTES_4_RQ_WQE_SHIFT_S 12 +#define QP_CONTEXT_QPC_BYTES_4_RQ_WQE_SHIFT_M \ + (((1UL << 4) - 1) << QP_CONTEXT_QPC_BYTES_4_RQ_WQE_SHIFT_S) + +#define QP_CONTEXT_QPC_BYTES_4_PD_S 16 +#define QP_CONTEXT_QPC_BYTES_4_PD_M \ + (((1UL << 16) - 1) << QP_CONTEXT_QPC_BYTES_4_PD_S) + +#define QP_CONTEXT_QPC_BYTES_8_TX_COMPLETION_S 0 +#define QP_CONTEXT_QPC_BYTES_8_TX_COMPLETION_M \ + (((1UL << 16) - 1) << QP_CONTEXT_QPC_BYTES_8_TX_COMPLETION_S) + +#define QP_CONTEXT_QPC_BYTES_8_RX_COMPLETION_S 16 +#define QP_CONTEXT_QPC_BYTES_8_RX_COMPLETION_M \ + (((1UL << 16) - 1) << QP_CONTEXT_QPC_BYTES_8_RX_COMPLETION_S) + +#define QP_CONTEXT_QPC_BYTES_12_SRQ_NUMBER_S 0 +#define QP_CONTEXT_QPC_BYTES_12_SRQ_NUMBER_M \ + (((1UL << 16) - 1) << QP_CONTEXT_QPC_BYTES_12_SRQ_NUMBER_S) + +#define QP_CONTEXT_QPC_BYTES_12_P_KEY_INDEX_S 16 +#define QP_CONTEXT_QPC_BYTES_12_P_KEY_INDEX_M \ + (((1UL << 16) - 1) << QP_CONTEXT_QPC_BYTES_12_P_KEY_INDEX_S) + +#define QP_CONTEXT_QPC_BYTES_16_QP_NUM_S 0 +#define QP_CONTEXT_QPC_BYTES_16_QP_NUM_M \ + (((1UL << 24) - 1) << QP_CONTEXT_QPC_BYTES_16_QP_NUM_S) + +#define QP_CONTEXT_QPC_BYTES_24_SQ_RQ_BT_H_S 0 +#define QP_CONTEXT_QPC_BYTES_24_SQ_RQ_BT_H_M \ + (((1UL << 17) - 1) << QP_CONTEXT_QPC_BYTES_24_SQ_RQ_BT_H_S) + +#define QP_CONTEXT_QPC_BYTES_24_MINIMUM_RNR_NAK_TIMER_S 18 +#define QP_CONTEXT_QPC_BYTES_24_MINIMUM_RNR_NAK_TIMER_M \ + (((1UL << 5) - 1) << QP_CONTEXT_QPC_BYTES_24_MINIMUM_RNR_NAK_TIMER_S) + +#define QP_CONTEXT_QPC_BYTE_24_REMOTE_ENABLE_E2E_CREDITS_S 23 + +#define QP_CONTEXT_QPC_BYTES_32_IRRL_BA_H_S 0 +#define QP_CONTEXT_QPC_BYTES_32_IRRL_BA_H_M \ + (((1UL << 17) - 1) << QP_CONTEXT_QPC_BYTES_32_IRRL_BA_H_S) + +#define QP_CONTEXT_QPC_BYTES_32_MIG_STATE_S 18 +#define QP_CONTEXT_QPC_BYTES_32_MIG_STATE_M \ + (((1UL << 2) - 1) << QP_CONTEXT_QPC_BYTES_32_MIG_STATE_S) + +#define QP_CONTEXT_QPC_BYTE_32_LOCAL_ENABLE_E2E_CREDITS_S 20 +#define QP_CONTEXT_QPC_BYTE_32_SIGNALING_TYPE_S 21 +#define QP_CONTEXT_QPC_BYTE_32_LOOPBACK_INDICATOR_S 22 +#define QP_CONTEXT_QPC_BYTE_32_GLOBAL_HEADER_S 23 + +#define QP_CONTEXT_QPC_BYTES_32_RESPONDER_RESOURCES_S 24 +#define QP_CONTEXT_QPC_BYTES_32_RESPONDER_RESOURCES_M \ + (((1UL << 8) - 1) << QP_CONTEXT_QPC_BYTES_32_RESPONDER_RESOURCES_S) + +#define QP_CONTEXT_QPC_BYTES_36_DEST_QP_S 0 +#define QP_CONTEXT_QPC_BYTES_36_DEST_QP_M \ + (((1UL << 24) - 1) << QP_CONTEXT_QPC_BYTES_36_DEST_QP_S) + +#define QP_CONTEXT_QPC_BYTES_36_SGID_INDEX_S 24 +#define QP_CONTEXT_QPC_BYTES_36_SGID_INDEX_M \ + (((1UL << 8) - 1) << QP_CONTEXT_QPC_BYTES_36_SGID_INDEX_S) + +#define QP_CONTEXT_QPC_BYTES_44_DMAC_H_S 0 +#define QP_CONTEXT_QPC_BYTES_44_DMAC_H_M \ + (((1UL << 16) - 1) << QP_CONTEXT_QPC_BYTES_44_DMAC_H_S) + +#define QP_CONTEXT_QPC_BYTES_44_MAXIMUM_STATIC_RATE_S 16 +#define QP_CONTEXT_QPC_BYTES_44_MAXIMUM_STATIC_RATE_M \ + (((1UL << 8) - 1) << QP_CONTEXT_QPC_BYTES_44_MAXIMUM_STATIC_RATE_S) + +#define QP_CONTEXT_QPC_BYTES_44_HOPLMT_S 24 +#define QP_CONTEXT_QPC_BYTES_44_HOPLMT_M \ + (((1UL << 8) - 1) << QP_CONTEXT_QPC_BYTES_44_HOPLMT_S) + +#define QP_CONTEXT_QPC_BYTES_48_FLOWLABEL_S 0 +#define QP_CONTEXT_QPC_BYTES_48_FLOWLABEL_M \ + (((1UL << 20) - 1) << QP_CONTEXT_QPC_BYTES_48_FLOWLABEL_S) + +#define QP_CONTEXT_QPC_BYTES_48_TCLASS_S 20 +#define QP_CONTEXT_QPC_BYTES_48_TCLASS_M \ + (((1UL << 8) - 1) << QP_CONTEXT_QPC_BYTES_48_TCLASS_S) + +#define QP_CONTEXT_QPC_BYTES_48_MTU_S 28 +#define QP_CONTEXT_QPC_BYTES_48_MTU_M \ + (((1UL << 4) - 1) << QP_CONTEXT_QPC_BYTES_48_MTU_S) + +#define QP_CONTEXT_QPC_BYTES_68_RQ_HEAD_S 0 +#define QP_CONTEXT_QPC_BYTES_68_RQ_HEAD_M \ + (((1UL << 15) - 1) << QP_CONTEXT_QPC_BYTES_68_RQ_HEAD_S) + +#define QP_CONTEXT_QPC_BYTES_68_RQ_CUR_INDEX_S 16 +#define QP_CONTEXT_QPC_BYTES_68_RQ_CUR_INDEX_M \ + (((1UL << 15) - 1) << QP_CONTEXT_QPC_BYTES_68_RQ_CUR_INDEX_S) + +#define QP_CONTEXT_QPC_BYTES_76_CUR_RQ_WQE_BA_H_S 0 +#define QP_CONTEXT_QPC_BYTES_76_CUR_RQ_WQE_BA_H_M \ + (((1UL << 5) - 1) << QP_CONTEXT_QPC_BYTES_76_CUR_RQ_WQE_BA_H_S) + +#define QP_CONTEXT_QPC_BYTES_76_RX_REQ_MSN_S 8 +#define QP_CONTEXT_QPC_BYTES_76_RX_REQ_MSN_M \ + (((1UL << 24) - 1) << QP_CONTEXT_QPC_BYTES_76_RX_REQ_MSN_S) + +#define QP_CONTEXT_QPC_BYTES_84_LAST_ACK_PSN_S 0 +#define QP_CONTEXT_QPC_BYTES_84_LAST_ACK_PSN_M \ + (((1UL << 24) - 1) << QP_CONTEXT_QPC_BYTES_84_LAST_ACK_PSN_S) + +#define QP_CONTEXT_QPC_BYTES_84_TRRL_HEAD_S 24 +#define QP_CONTEXT_QPC_BYTES_84_TRRL_HEAD_M \ + (((1UL << 8) - 1) << QP_CONTEXT_QPC_BYTES_84_TRRL_HEAD_S) + +#define QP_CONTEXT_QPC_BYTES_88_RX_REQ_EPSN_S 0 +#define QP_CONTEXT_QPC_BYTES_88_RX_REQ_EPSN_M \ + (((1UL << 24) - 1) << QP_CONTEXT_QPC_BYTES_88_RX_REQ_EPSN_S) + +#define QP_CONTEXT_QPC_BYTES_88_RX_REQ_PSN_ERR_FLAG_S 24 +#define QP_CONTEXT_QPC_BYTES_88_RX_LAST_OPCODE_FLG_S 25 + +#define QP_CONTEXT_QPC_BYTES_88_RQ_REQ_LAST_OPERATION_TYPE_S 26 +#define QP_CONTEXT_QPC_BYTES_88_RQ_REQ_LAST_OPERATION_TYPE_M \ + (((1UL << 2) - 1) << \ + QP_CONTEXT_QPC_BYTES_88_RQ_REQ_LAST_OPERATION_TYPE_S) + +#define QP_CONTEXT_QPC_BYTES_88_RQ_REQ_RDMA_WR_FLAG_S 29 +#define QP_CONTEXT_QPC_BYTES_88_RQ_REQ_RDMA_WR_FLAG_M \ + (((1UL << 2) - 1) << QP_CONTEXT_QPC_BYTES_88_RQ_REQ_RDMA_WR_FLAG_S) + +#define QP_CONTEXT_QPC_BYTES_108_TRRL_SDB_PSN_S 0 +#define QP_CONTEXT_QPC_BYTES_108_TRRL_SDB_PSN_M \ + (((1UL << 24) - 1) << QP_CONTEXT_QPC_BYTES_108_TRRL_SDB_PSN_S) + +#define QP_CONTEXT_QPC_BYTES_108_TRRL_SDB_PSN_FLG_S 24 +#define QP_CONTEXT_QPC_BYTES_108_TRRL_TDB_PSN_FLG_S 25 + +#define QP_CONTEXT_QPC_BYTES_112_TRRL_TDB_PSN_S 0 +#define QP_CONTEXT_QPC_BYTES_112_TRRL_TDB_PSN_M \ + (((1UL << 24) - 1) << QP_CONTEXT_QPC_BYTES_112_TRRL_TDB_PSN_S) + +#define QP_CONTEXT_QPC_BYTES_112_TRRL_TAIL_S 24 +#define QP_CONTEXT_QPC_BYTES_112_TRRL_TAIL_M \ + (((1UL << 8) - 1) << QP_CONTEXT_QPC_BYTES_112_TRRL_TAIL_S) + +#define QP_CONTEXT_QPC_BYTES_120_RX_CUR_SQ_WQE_BA_H_S 0 +#define QP_CONTEXT_QPC_BYTES_120_RX_CUR_SQ_WQE_BA_H_M \ + (((1UL << 5) - 1) << QP_CONTEXT_QPC_BYTES_120_RX_CUR_SQ_WQE_BA_H_S) + +#define QP_CONTEXT_QPC_BYTES_124_RX_ACK_MSN_S 0 +#define QP_CONTEXT_QPC_BYTES_124_RX_ACK_MSN_M \ + (((1UL << 15) - 1) << QP_CONTEXT_QPC_BYTES_124_RX_ACK_MSN_S) + +#define QP_CONTEXT_QPC_BYTES_124_IRRL_MSG_IDX_S 16 +#define QP_CONTEXT_QPC_BYTES_124_IRRL_MSG_IDX_M \ + (((1UL << 15) - 1) << QP_CONTEXT_QPC_BYTES_124_IRRL_MSG_IDX_S) + +#define QP_CONTEXT_QPC_BYTES_128_RX_ACK_EPSN_S 0 +#define QP_CONTEXT_QPC_BYTES_128_RX_ACK_EPSN_M \ + (((1UL << 24) - 1) << QP_CONTEXT_QPC_BYTES_128_RX_ACK_EPSN_S) + +#define QP_CONTEXT_QPC_BYTES_128_RX_ACK_PSN_ERR_FLG_S 24 + +#define QP_CONTEXT_QPC_BYTES_128_ACK_LAST_OPERATION_TYPE_S 25 +#define QP_CONTEXT_QPC_BYTES_128_ACK_LAST_OPERATION_TYPE_M \ + (((1UL << 2) - 1) << QP_CONTEXT_QPC_BYTES_128_ACK_LAST_OPERATION_TYPE_S) + +#define QP_CONTEXT_QPC_BYTES_128_IRRL_PSN_VLD_FLG_S 27 + +#define QP_CONTEXT_QPC_BYTES_132_IRRL_PSN_S 0 +#define QP_CONTEXT_QPC_BYTES_132_IRRL_PSN_M \ + (((1UL << 24) - 1) << QP_CONTEXT_QPC_BYTES_132_IRRL_PSN_S) + +#define QP_CONTEXT_QPC_BYTES_132_IRRL_TAIL_S 24 +#define QP_CONTEXT_QPC_BYTES_132_IRRL_TAIL_M \ + (((1UL << 8) - 1) << QP_CONTEXT_QPC_BYTES_132_IRRL_TAIL_S) + +#define QP_CONTEXT_QPC_BYTES_136_RETRY_MSG_PSN_S 0 +#define QP_CONTEXT_QPC_BYTES_136_RETRY_MSG_PSN_M \ + (((1UL << 24) - 1) << QP_CONTEXT_QPC_BYTES_136_RETRY_MSG_PSN_S) + +#define QP_CONTEXT_QPC_BYTES_136_RETRY_MSG_FPKT_PSN_L_S 24 +#define QP_CONTEXT_QPC_BYTES_136_RETRY_MSG_FPKT_PSN_L_M \ + (((1UL << 8) - 1) << QP_CONTEXT_QPC_BYTES_136_RETRY_MSG_FPKT_PSN_L_S) + +#define QP_CONTEXT_QPC_BYTES_140_RETRY_MSG_FPKT_PSN_H_S 0 +#define QP_CONTEXT_QPC_BYTES_140_RETRY_MSG_FPKT_PSN_H_M \ + (((1UL << 16) - 1) << QP_CONTEXT_QPC_BYTES_140_RETRY_MSG_FPKT_PSN_H_S) + +#define QP_CONTEXT_QPC_BYTES_140_RETRY_MSG_MSN_S 16 +#define QP_CONTEXT_QPC_BYTES_140_RETRY_MSG_MSN_M \ + (((1UL << 15) - 1) << QP_CONTEXT_QPC_BYTES_140_RETRY_MSG_MSN_S) + +#define QP_CONTEXT_QPC_BYTES_140_RNR_RETRY_FLG_S 31 + +#define QP_CONTEXT_QPC_BYTES_144_QP_STATE_S 0 +#define QP_CONTEXT_QPC_BYTES_144_QP_STATE_M \ + (((1UL << 3) - 1) << QP_CONTEXT_QPC_BYTES_144_QP_STATE_S) + +#define QP_CONTEXT_QPC_BYTES_148_CHECK_FLAG_S 0 +#define QP_CONTEXT_QPC_BYTES_148_CHECK_FLAG_M \ + (((1UL << 2) - 1) << QP_CONTEXT_QPC_BYTES_148_CHECK_FLAG_S) + +#define QP_CONTEXT_QPC_BYTES_148_RETRY_COUNT_S 2 +#define QP_CONTEXT_QPC_BYTES_148_RETRY_COUNT_M \ + (((1UL << 3) - 1) << QP_CONTEXT_QPC_BYTES_148_RETRY_COUNT_S) + +#define QP_CONTEXT_QPC_BYTES_148_RNR_RETRY_COUNT_S 5 +#define QP_CONTEXT_QPC_BYTES_148_RNR_RETRY_COUNT_M \ + (((1UL << 3) - 1) << QP_CONTEXT_QPC_BYTES_148_RNR_RETRY_COUNT_S) + +#define QP_CONTEXT_QPC_BYTES_148_LSN_S 8 +#define QP_CONTEXT_QPC_BYTES_148_LSN_M \ + (((1UL << 16) - 1) << QP_CONTEXT_QPC_BYTES_148_LSN_S) + +#define QP_CONTEXT_QPC_BYTES_156_RETRY_COUNT_INIT_S 0 +#define QP_CONTEXT_QPC_BYTES_156_RETRY_COUNT_INIT_M \ + (((1UL << 3) - 1) << QP_CONTEXT_QPC_BYTES_156_RETRY_COUNT_INIT_S) + +#define QP_CONTEXT_QPC_BYTES_156_ACK_TIMEOUT_S 3 +#define QP_CONTEXT_QPC_BYTES_156_ACK_TIMEOUT_M \ + (((1UL << 5) - 1) << QP_CONTEXT_QPC_BYTES_156_ACK_TIMEOUT_S) + +#define QP_CONTEXT_QPC_BYTES_156_RNR_RETRY_COUNT_INIT_S 8 +#define QP_CONTEXT_QPC_BYTES_156_RNR_RETRY_COUNT_INIT_M \ + (((1UL << 3) - 1) << QP_CONTEXT_QPC_BYTES_156_RNR_RETRY_COUNT_INIT_S) + +#define QP_CONTEXT_QPC_BYTES_156_PORT_NUM_S 11 +#define QP_CONTEXT_QPC_BYTES_156_PORT_NUM_M \ + (((1UL << 3) - 1) << QP_CONTEXT_QPC_BYTES_156_PORT_NUM_S) + +#define QP_CONTEXT_QPC_BYTES_156_SL_S 14 +#define QP_CONTEXT_QPC_BYTES_156_SL_M \ + (((1UL << 2) - 1) << QP_CONTEXT_QPC_BYTES_156_SL_S) + +#define QP_CONTEXT_QPC_BYTES_156_INITIATOR_DEPTH_S 16 +#define QP_CONTEXT_QPC_BYTES_156_INITIATOR_DEPTH_M \ + (((1UL << 8) - 1) << QP_CONTEXT_QPC_BYTES_156_INITIATOR_DEPTH_S) + +#define QP_CONTEXT_QPC_BYTES_156_ACK_REQ_IND_S 24 +#define QP_CONTEXT_QPC_BYTES_156_ACK_REQ_IND_M \ + (((1UL << 2) - 1) << QP_CONTEXT_QPC_BYTES_156_ACK_REQ_IND_S) + +#define QP_CONTEXT_QPC_BYTES_164_SQ_PSN_S 0 +#define QP_CONTEXT_QPC_BYTES_164_SQ_PSN_M \ + (((1UL << 24) - 1) << QP_CONTEXT_QPC_BYTES_164_SQ_PSN_S) + +#define QP_CONTEXT_QPC_BYTES_164_IRRL_HEAD_S 24 +#define QP_CONTEXT_QPC_BYTES_164_IRRL_HEAD_M \ + (((1UL << 8) - 1) << QP_CONTEXT_QPC_BYTES_164_IRRL_HEAD_S) + +#define QP_CONTEXT_QPC_BYTES_168_RETRY_SQ_PSN_S 0 +#define QP_CONTEXT_QPC_BYTES_168_RETRY_SQ_PSN_M \ + (((1UL << 24) - 1) << QP_CONTEXT_QPC_BYTES_168_RETRY_SQ_PSN_S) + +#define QP_CONTEXT_QPC_BYTES_168_SGE_USE_FLA_S 24 +#define QP_CONTEXT_QPC_BYTES_168_SGE_USE_FLA_M \ + (((1UL << 2) - 1) << QP_CONTEXT_QPC_BYTES_168_SGE_USE_FLA_S) + +#define QP_CONTEXT_QPC_BYTES_168_DB_TYPE_S 26 +#define QP_CONTEXT_QPC_BYTES_168_DB_TYPE_M \ + (((1UL << 2) - 1) << QP_CONTEXT_QPC_BYTES_168_DB_TYPE_S) + +#define QP_CONTEXT_QPC_BYTES_168_MSG_LP_IND_S 28 +#define QP_CONTEXT_QPC_BYTES_168_CSDB_LP_IND_S 29 +#define QP_CONTEXT_QPC_BYTES_168_QP_ERR_FLG_S 30 + +#define QP_CONTEXT_QPC_BYTES_176_DB_CUR_INDEX_S 0 +#define QP_CONTEXT_QPC_BYTES_176_DB_CUR_INDEX_M \ + (((1UL << 15) - 1) << QP_CONTEXT_QPC_BYTES_176_DB_CUR_INDEX_S) + +#define QP_CONTEXT_QPC_BYTES_176_RETRY_DB_CUR_INDEX_S 16 +#define QP_CONTEXT_QPC_BYTES_176_RETRY_DB_CUR_INDEX_M \ + (((1UL << 15) - 1) << QP_CONTEXT_QPC_BYTES_176_RETRY_DB_CUR_INDEX_S) + +#define QP_CONTEXT_QPC_BYTES_180_SQ_HEAD_S 0 +#define QP_CONTEXT_QPC_BYTES_180_SQ_HEAD_M \ + (((1UL << 15) - 1) << QP_CONTEXT_QPC_BYTES_180_SQ_HEAD_S) + +#define QP_CONTEXT_QPC_BYTES_180_SQ_CUR_INDEX_S 16 +#define QP_CONTEXT_QPC_BYTES_180_SQ_CUR_INDEX_M \ + (((1UL << 15) - 1) << QP_CONTEXT_QPC_BYTES_180_SQ_CUR_INDEX_S) + +#define QP_CONTEXT_QPC_BYTES_188_TX_CUR_SQ_WQE_BA_H_S 0 +#define QP_CONTEXT_QPC_BYTES_188_TX_CUR_SQ_WQE_BA_H_M \ + (((1UL << 5) - 1) << QP_CONTEXT_QPC_BYTES_188_TX_CUR_SQ_WQE_BA_H_S) + +#define QP_CONTEXT_QPC_BYTES_188_PKT_RETRY_FLG_S 8 + +#define QP_CONTEXT_QPC_BYTES_188_TX_RETRY_CUR_INDEX_S 16 +#define QP_CONTEXT_QPC_BYTES_188_TX_RETRY_CUR_INDEX_M \ + (((1UL << 15) - 1) << QP_CONTEXT_QPC_BYTES_188_TX_RETRY_CUR_INDEX_S) + +struct hns_roce_rq_db { + u32 u32_4; + u32 u32_8; +}; + +#define RQ_DOORBELL_U32_4_RQ_HEAD_S 0 +#define RQ_DOORBELL_U32_4_RQ_HEAD_M \ + (((1UL << 15) - 1) << RQ_DOORBELL_U32_4_RQ_HEAD_S) + +#define RQ_DOORBELL_U32_8_QPN_S 0 +#define RQ_DOORBELL_U32_8_QPN_M (((1UL << 24) - 1) << RQ_DOORBELL_U32_8_QPN_S) + +#define RQ_DOORBELL_U32_8_CMD_S 28 +#define RQ_DOORBELL_U32_8_CMD_M (((1UL << 3) - 1) << RQ_DOORBELL_U32_8_CMD_S) + +#define RQ_DOORBELL_U32_8_HW_SYNC_S 31 + +struct hns_roce_sq_db { + u32 u32_4; + u32 u32_8; +}; + +#define SQ_DOORBELL_U32_4_SQ_HEAD_S 0 +#define SQ_DOORBELL_U32_4_SQ_HEAD_M \ + (((1UL << 15) - 1) << SQ_DOORBELL_U32_4_SQ_HEAD_S) + +#define SQ_DOORBELL_U32_4_PORT_S 18 +#define SQ_DOORBELL_U32_4_PORT_M (((1UL << 3) - 1) << SQ_DOORBELL_U32_4_PORT_S) + +#define SQ_DOORBELL_U32_8_QPN_S 0 +#define SQ_DOORBELL_U32_8_QPN_M (((1UL << 24) - 1) << SQ_DOORBELL_U32_8_QPN_S) + +#define SQ_DOORBELL_HW_SYNC_S 31 + +struct hns_roce_ext_db { + int esdb_dep; + int eodb_dep; + struct hns_roce_buf_list *sdb_buf_list; + struct hns_roce_buf_list *odb_buf_list; +}; + +struct hns_roce_db_table { + int sdb_ext_mod; + int odb_ext_mod; + struct hns_roce_ext_db *ext_db; +}; + +struct hns_roce_v1_priv { + struct hns_roce_db_table db_table; + struct hns_roce_raq_table raq_table; +}; + +int hns_dsaf_roce_reset(struct fwnode_handle *dsaf_fwnode, bool enable); + +#endif diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c new file mode 100644 index 000000000000..5b42ec85efa0 --- /dev/null +++ b/drivers/infiniband/hw/hns/hns_roce_main.c @@ -0,0 +1,1059 @@ +/* + * Copyright (c) 2016 Hisilicon Limited. + * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/of_platform.h> +#include <rdma/ib_addr.h> +#include <rdma/ib_smi.h> +#include <rdma/ib_user_verbs.h> +#include "hns_roce_common.h" +#include "hns_roce_device.h" +#include "hns_roce_user.h" +#include "hns_roce_hem.h" + +/** + * hns_roce_addrconf_ifid_eui48 - Get default gid. + * @eui: eui. + * @vlan_id: gid + * @dev: net device + * Description: + * MAC convert to GID + * gid[0..7] = fe80 0000 0000 0000 + * gid[8] = mac[0] ^ 2 + * gid[9] = mac[1] + * gid[10] = mac[2] + * gid[11] = ff (VLAN ID high byte (4 MS bits)) + * gid[12] = fe (VLAN ID low byte) + * gid[13] = mac[3] + * gid[14] = mac[4] + * gid[15] = mac[5] + */ +static void hns_roce_addrconf_ifid_eui48(u8 *eui, u16 vlan_id, + struct net_device *dev) +{ + memcpy(eui, dev->dev_addr, 3); + memcpy(eui + 5, dev->dev_addr + 3, 3); + if (vlan_id < 0x1000) { + eui[3] = vlan_id >> 8; + eui[4] = vlan_id & 0xff; + } else { + eui[3] = 0xff; + eui[4] = 0xfe; + } + eui[0] ^= 2; +} + +static void hns_roce_make_default_gid(struct net_device *dev, union ib_gid *gid) +{ + memset(gid, 0, sizeof(*gid)); + gid->raw[0] = 0xFE; + gid->raw[1] = 0x80; + hns_roce_addrconf_ifid_eui48(&gid->raw[8], 0xffff, dev); +} + +/** + * hns_get_gid_index - Get gid index. + * @hr_dev: pointer to structure hns_roce_dev. + * @port: port, value range: 0 ~ MAX + * @gid_index: gid_index, value range: 0 ~ MAX + * Description: + * N ports shared gids, allocation method as follow: + * GID[0][0], GID[1][0],.....GID[N - 1][0], + * GID[0][0], GID[1][0],.....GID[N - 1][0], + * And so on + */ +int hns_get_gid_index(struct hns_roce_dev *hr_dev, u8 port, int gid_index) +{ + return gid_index * hr_dev->caps.num_ports + port; +} + +static int hns_roce_set_gid(struct hns_roce_dev *hr_dev, u8 port, int gid_index, + union ib_gid *gid) +{ + struct device *dev = &hr_dev->pdev->dev; + u8 gid_idx = 0; + + if (gid_index >= hr_dev->caps.gid_table_len[port]) { + dev_err(dev, "gid_index %d illegal, port %d gid range: 0~%d\n", + gid_index, port, hr_dev->caps.gid_table_len[port] - 1); + return -EINVAL; + } + + gid_idx = hns_get_gid_index(hr_dev, port, gid_index); + + if (!memcmp(gid, &hr_dev->iboe.gid_table[gid_idx], sizeof(*gid))) + return -EINVAL; + + memcpy(&hr_dev->iboe.gid_table[gid_idx], gid, sizeof(*gid)); + + hr_dev->hw->set_gid(hr_dev, port, gid_index, gid); + + return 0; +} + +static void hns_roce_set_mac(struct hns_roce_dev *hr_dev, u8 port, u8 *addr) +{ + u8 phy_port; + u32 i = 0; + + if (!memcmp(hr_dev->dev_addr[port], addr, MAC_ADDR_OCTET_NUM)) + return; + + for (i = 0; i < MAC_ADDR_OCTET_NUM; i++) + hr_dev->dev_addr[port][i] = addr[i]; + + phy_port = hr_dev->iboe.phy_port[port]; + hr_dev->hw->set_mac(hr_dev, phy_port, addr); +} + +static void hns_roce_set_mtu(struct hns_roce_dev *hr_dev, u8 port, int mtu) +{ + u8 phy_port = hr_dev->iboe.phy_port[port]; + enum ib_mtu tmp; + + tmp = iboe_get_mtu(mtu); + if (!tmp) + tmp = IB_MTU_256; + + hr_dev->hw->set_mtu(hr_dev, phy_port, tmp); +} + +static void hns_roce_update_gids(struct hns_roce_dev *hr_dev, int port) +{ + struct ib_event event; + + /* Refresh gid in ib_cache */ + event.device = &hr_dev->ib_dev; + event.element.port_num = port + 1; + event.event = IB_EVENT_GID_CHANGE; + ib_dispatch_event(&event); +} + +static int handle_en_event(struct hns_roce_dev *hr_dev, u8 port, + unsigned long event) +{ + struct device *dev = &hr_dev->pdev->dev; + struct net_device *netdev; + unsigned long flags; + union ib_gid gid; + int ret = 0; + + netdev = hr_dev->iboe.netdevs[port]; + if (!netdev) { + dev_err(dev, "port(%d) can't find netdev\n", port); + return -ENODEV; + } + + spin_lock_irqsave(&hr_dev->iboe.lock, flags); + + switch (event) { + case NETDEV_UP: + case NETDEV_CHANGE: + case NETDEV_REGISTER: + case NETDEV_CHANGEADDR: + hns_roce_set_mac(hr_dev, port, netdev->dev_addr); + hns_roce_make_default_gid(netdev, &gid); + ret = hns_roce_set_gid(hr_dev, port, 0, &gid); + if (!ret) + hns_roce_update_gids(hr_dev, port); + break; + case NETDEV_DOWN: + /* + * In v1 engine, only support all ports closed together. + */ + break; + default: + dev_dbg(dev, "NETDEV event = 0x%x!\n", (u32)(event)); + break; + } + + spin_unlock_irqrestore(&hr_dev->iboe.lock, flags); + return ret; +} + +static int hns_roce_netdev_event(struct notifier_block *self, + unsigned long event, void *ptr) +{ + struct net_device *dev = netdev_notifier_info_to_dev(ptr); + struct hns_roce_ib_iboe *iboe = NULL; + struct hns_roce_dev *hr_dev = NULL; + u8 port = 0; + int ret = 0; + + hr_dev = container_of(self, struct hns_roce_dev, iboe.nb); + iboe = &hr_dev->iboe; + + for (port = 0; port < hr_dev->caps.num_ports; port++) { + if (dev == iboe->netdevs[port]) { + ret = handle_en_event(hr_dev, port, event); + if (ret) + return NOTIFY_DONE; + break; + } + } + + return NOTIFY_DONE; +} + +static void hns_roce_addr_event(int event, struct net_device *event_netdev, + struct hns_roce_dev *hr_dev, union ib_gid *gid) +{ + struct hns_roce_ib_iboe *iboe = NULL; + int gid_table_len = 0; + unsigned long flags; + union ib_gid zgid; + u8 gid_idx = 0; + u8 port = 0; + int i = 0; + int free; + struct net_device *real_dev = rdma_vlan_dev_real_dev(event_netdev) ? + rdma_vlan_dev_real_dev(event_netdev) : + event_netdev; + + if (event != NETDEV_UP && event != NETDEV_DOWN) + return; + + iboe = &hr_dev->iboe; + while (port < hr_dev->caps.num_ports) { + if (real_dev == iboe->netdevs[port]) + break; + port++; + } + + if (port >= hr_dev->caps.num_ports) { + dev_dbg(&hr_dev->pdev->dev, "can't find netdev\n"); + return; + } + + memset(zgid.raw, 0, sizeof(zgid.raw)); + free = -1; + gid_table_len = hr_dev->caps.gid_table_len[port]; + + spin_lock_irqsave(&hr_dev->iboe.lock, flags); + + for (i = 0; i < gid_table_len; i++) { + gid_idx = hns_get_gid_index(hr_dev, port, i); + if (!memcmp(gid->raw, iboe->gid_table[gid_idx].raw, + sizeof(gid->raw))) + break; + if (free < 0 && !memcmp(zgid.raw, + iboe->gid_table[gid_idx].raw, sizeof(zgid.raw))) + free = i; + } + + if (i >= gid_table_len) { + if (free < 0) { + spin_unlock_irqrestore(&hr_dev->iboe.lock, flags); + dev_dbg(&hr_dev->pdev->dev, + "gid_index overflow, port(%d)\n", port); + return; + } + if (!hns_roce_set_gid(hr_dev, port, free, gid)) + hns_roce_update_gids(hr_dev, port); + } else if (event == NETDEV_DOWN) { + if (!hns_roce_set_gid(hr_dev, port, i, &zgid)) + hns_roce_update_gids(hr_dev, port); + } + + spin_unlock_irqrestore(&hr_dev->iboe.lock, flags); +} + +static int hns_roce_inet_event(struct notifier_block *self, unsigned long event, + void *ptr) +{ + struct in_ifaddr *ifa = ptr; + struct hns_roce_dev *hr_dev; + struct net_device *dev = ifa->ifa_dev->dev; + union ib_gid gid; + + ipv6_addr_set_v4mapped(ifa->ifa_address, (struct in6_addr *)&gid); + + hr_dev = container_of(self, struct hns_roce_dev, iboe.nb_inet); + + hns_roce_addr_event(event, dev, hr_dev, &gid); + + return NOTIFY_DONE; +} + +static int hns_roce_setup_mtu_gids(struct hns_roce_dev *hr_dev) +{ + struct in_ifaddr *ifa_list = NULL; + union ib_gid gid = {{0} }; + u32 ipaddr = 0; + int index = 0; + int ret = 0; + u8 i = 0; + + for (i = 0; i < hr_dev->caps.num_ports; i++) { + hns_roce_set_mtu(hr_dev, i, + ib_mtu_enum_to_int(hr_dev->caps.max_mtu)); + hns_roce_set_mac(hr_dev, i, hr_dev->iboe.netdevs[i]->dev_addr); + + if (hr_dev->iboe.netdevs[i]->ip_ptr) { + ifa_list = hr_dev->iboe.netdevs[i]->ip_ptr->ifa_list; + index = 1; + while (ifa_list) { + ipaddr = ifa_list->ifa_address; + ipv6_addr_set_v4mapped(ipaddr, + (struct in6_addr *)&gid); + ret = hns_roce_set_gid(hr_dev, i, index, &gid); + if (ret) + break; + index++; + ifa_list = ifa_list->ifa_next; + } + hns_roce_update_gids(hr_dev, i); + } + } + + return ret; +} + +static int hns_roce_query_device(struct ib_device *ib_dev, + struct ib_device_attr *props, + struct ib_udata *uhw) +{ + struct hns_roce_dev *hr_dev = to_hr_dev(ib_dev); + + memset(props, 0, sizeof(*props)); + + props->sys_image_guid = hr_dev->sys_image_guid; + props->max_mr_size = (u64)(~(0ULL)); + props->page_size_cap = hr_dev->caps.page_size_cap; + props->vendor_id = hr_dev->vendor_id; + props->vendor_part_id = hr_dev->vendor_part_id; + props->hw_ver = hr_dev->hw_rev; + props->max_qp = hr_dev->caps.num_qps; + props->max_qp_wr = hr_dev->caps.max_wqes; + props->device_cap_flags = IB_DEVICE_PORT_ACTIVE_EVENT | + IB_DEVICE_RC_RNR_NAK_GEN | + IB_DEVICE_LOCAL_DMA_LKEY; + props->max_sge = hr_dev->caps.max_sq_sg; + props->max_sge_rd = 1; + props->max_cq = hr_dev->caps.num_cqs; + props->max_cqe = hr_dev->caps.max_cqes; + props->max_mr = hr_dev->caps.num_mtpts; + props->max_pd = hr_dev->caps.num_pds; + props->max_qp_rd_atom = hr_dev->caps.max_qp_dest_rdma; + props->max_qp_init_rd_atom = hr_dev->caps.max_qp_init_rdma; + props->atomic_cap = IB_ATOMIC_NONE; + props->max_pkeys = 1; + props->local_ca_ack_delay = hr_dev->caps.local_ca_ack_delay; + + return 0; +} + +static int hns_roce_query_port(struct ib_device *ib_dev, u8 port_num, + struct ib_port_attr *props) +{ + struct hns_roce_dev *hr_dev = to_hr_dev(ib_dev); + struct device *dev = &hr_dev->pdev->dev; + struct net_device *net_dev; + unsigned long flags; + enum ib_mtu mtu; + u8 port; + + assert(port_num > 0); + port = port_num - 1; + + memset(props, 0, sizeof(*props)); + + props->max_mtu = hr_dev->caps.max_mtu; + props->gid_tbl_len = hr_dev->caps.gid_table_len[port]; + props->port_cap_flags = IB_PORT_CM_SUP | IB_PORT_REINIT_SUP | + IB_PORT_VENDOR_CLASS_SUP | + IB_PORT_BOOT_MGMT_SUP; + props->max_msg_sz = HNS_ROCE_MAX_MSG_LEN; + props->pkey_tbl_len = 1; + props->active_width = IB_WIDTH_4X; + props->active_speed = 1; + + spin_lock_irqsave(&hr_dev->iboe.lock, flags); + + net_dev = hr_dev->iboe.netdevs[port]; + if (!net_dev) { + spin_unlock_irqrestore(&hr_dev->iboe.lock, flags); + dev_err(dev, "find netdev %d failed!\r\n", port); + return -EINVAL; + } + + mtu = iboe_get_mtu(net_dev->mtu); + props->active_mtu = mtu ? min(props->max_mtu, mtu) : IB_MTU_256; + props->state = (netif_running(net_dev) && netif_carrier_ok(net_dev)) ? + IB_PORT_ACTIVE : IB_PORT_DOWN; + props->phys_state = (props->state == IB_PORT_ACTIVE) ? 5 : 3; + + spin_unlock_irqrestore(&hr_dev->iboe.lock, flags); + + return 0; +} + +static enum rdma_link_layer hns_roce_get_link_layer(struct ib_device *device, + u8 port_num) +{ + return IB_LINK_LAYER_ETHERNET; +} + +static int hns_roce_query_gid(struct ib_device *ib_dev, u8 port_num, int index, + union ib_gid *gid) +{ + struct hns_roce_dev *hr_dev = to_hr_dev(ib_dev); + struct device *dev = &hr_dev->pdev->dev; + u8 gid_idx = 0; + u8 port; + + if (port_num < 1 || port_num > hr_dev->caps.num_ports || + index >= hr_dev->caps.gid_table_len[port_num - 1]) { + dev_err(dev, + "port_num %d index %d illegal! correct range: port_num 1~%d index 0~%d!\n", + port_num, index, hr_dev->caps.num_ports, + hr_dev->caps.gid_table_len[port_num - 1] - 1); + return -EINVAL; + } + + port = port_num - 1; + gid_idx = hns_get_gid_index(hr_dev, port, index); + if (gid_idx >= HNS_ROCE_MAX_GID_NUM) { + dev_err(dev, "port_num %d index %d illegal! total gid num %d!\n", + port_num, index, HNS_ROCE_MAX_GID_NUM); + return -EINVAL; + } + + memcpy(gid->raw, hr_dev->iboe.gid_table[gid_idx].raw, + HNS_ROCE_GID_SIZE); + + return 0; +} + +static int hns_roce_query_pkey(struct ib_device *ib_dev, u8 port, u16 index, + u16 *pkey) +{ + *pkey = PKEY_ID; + + return 0; +} + +static int hns_roce_modify_device(struct ib_device *ib_dev, int mask, + struct ib_device_modify *props) +{ + unsigned long flags; + + if (mask & ~IB_DEVICE_MODIFY_NODE_DESC) + return -EOPNOTSUPP; + + if (mask & IB_DEVICE_MODIFY_NODE_DESC) { + spin_lock_irqsave(&to_hr_dev(ib_dev)->sm_lock, flags); + memcpy(ib_dev->node_desc, props->node_desc, NODE_DESC_SIZE); + spin_unlock_irqrestore(&to_hr_dev(ib_dev)->sm_lock, flags); + } + + return 0; +} + +static int hns_roce_modify_port(struct ib_device *ib_dev, u8 port_num, int mask, + struct ib_port_modify *props) +{ + return 0; +} + +static struct ib_ucontext *hns_roce_alloc_ucontext(struct ib_device *ib_dev, + struct ib_udata *udata) +{ + int ret = 0; + struct hns_roce_ucontext *context; + struct hns_roce_ib_alloc_ucontext_resp resp; + struct hns_roce_dev *hr_dev = to_hr_dev(ib_dev); + + resp.qp_tab_size = hr_dev->caps.num_qps; + + context = kmalloc(sizeof(*context), GFP_KERNEL); + if (!context) + return ERR_PTR(-ENOMEM); + + ret = hns_roce_uar_alloc(hr_dev, &context->uar); + if (ret) + goto error_fail_uar_alloc; + + ret = ib_copy_to_udata(udata, &resp, sizeof(resp)); + if (ret) + goto error_fail_copy_to_udata; + + return &context->ibucontext; + +error_fail_copy_to_udata: + hns_roce_uar_free(hr_dev, &context->uar); + +error_fail_uar_alloc: + kfree(context); + + return ERR_PTR(ret); +} + +static int hns_roce_dealloc_ucontext(struct ib_ucontext *ibcontext) +{ + struct hns_roce_ucontext *context = to_hr_ucontext(ibcontext); + + hns_roce_uar_free(to_hr_dev(ibcontext->device), &context->uar); + kfree(context); + + return 0; +} + +static int hns_roce_mmap(struct ib_ucontext *context, + struct vm_area_struct *vma) +{ + if (((vma->vm_end - vma->vm_start) % PAGE_SIZE) != 0) + return -EINVAL; + + if (vma->vm_pgoff == 0) { + vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); + if (io_remap_pfn_range(vma, vma->vm_start, + to_hr_ucontext(context)->uar.pfn, + PAGE_SIZE, vma->vm_page_prot)) + return -EAGAIN; + + } else { + return -EINVAL; + } + + return 0; +} + +static int hns_roce_port_immutable(struct ib_device *ib_dev, u8 port_num, + struct ib_port_immutable *immutable) +{ + struct ib_port_attr attr; + int ret; + + ret = hns_roce_query_port(ib_dev, port_num, &attr); + if (ret) + return ret; + + immutable->pkey_tbl_len = attr.pkey_tbl_len; + immutable->gid_tbl_len = attr.gid_tbl_len; + + immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE; + immutable->max_mad_size = IB_MGMT_MAD_SIZE; + + return 0; +} + +static void hns_roce_unregister_device(struct hns_roce_dev *hr_dev) +{ + struct hns_roce_ib_iboe *iboe = &hr_dev->iboe; + + unregister_inetaddr_notifier(&iboe->nb_inet); + unregister_netdevice_notifier(&iboe->nb); + ib_unregister_device(&hr_dev->ib_dev); +} + +static int hns_roce_register_device(struct hns_roce_dev *hr_dev) +{ + int ret; + struct hns_roce_ib_iboe *iboe = NULL; + struct ib_device *ib_dev = NULL; + struct device *dev = &hr_dev->pdev->dev; + + iboe = &hr_dev->iboe; + + ib_dev = &hr_dev->ib_dev; + strlcpy(ib_dev->name, "hisi_%d", IB_DEVICE_NAME_MAX); + + ib_dev->owner = THIS_MODULE; + ib_dev->node_type = RDMA_NODE_IB_CA; + ib_dev->dma_device = dev; + + ib_dev->phys_port_cnt = hr_dev->caps.num_ports; + ib_dev->local_dma_lkey = hr_dev->caps.reserved_lkey; + ib_dev->num_comp_vectors = hr_dev->caps.num_comp_vectors; + ib_dev->uverbs_abi_ver = 1; + ib_dev->uverbs_cmd_mask = + (1ULL << IB_USER_VERBS_CMD_GET_CONTEXT) | + (1ULL << IB_USER_VERBS_CMD_QUERY_DEVICE) | + (1ULL << IB_USER_VERBS_CMD_QUERY_PORT) | + (1ULL << IB_USER_VERBS_CMD_ALLOC_PD) | + (1ULL << IB_USER_VERBS_CMD_DEALLOC_PD) | + (1ULL << IB_USER_VERBS_CMD_REG_MR) | + (1ULL << IB_USER_VERBS_CMD_DEREG_MR) | + (1ULL << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | + (1ULL << IB_USER_VERBS_CMD_CREATE_CQ) | + (1ULL << IB_USER_VERBS_CMD_DESTROY_CQ) | + (1ULL << IB_USER_VERBS_CMD_CREATE_QP) | + (1ULL << IB_USER_VERBS_CMD_MODIFY_QP) | + (1ULL << IB_USER_VERBS_CMD_QUERY_QP) | + (1ULL << IB_USER_VERBS_CMD_DESTROY_QP); + + /* HCA||device||port */ + ib_dev->modify_device = hns_roce_modify_device; + ib_dev->query_device = hns_roce_query_device; + ib_dev->query_port = hns_roce_query_port; + ib_dev->modify_port = hns_roce_modify_port; + ib_dev->get_link_layer = hns_roce_get_link_layer; + ib_dev->query_gid = hns_roce_query_gid; + ib_dev->query_pkey = hns_roce_query_pkey; + ib_dev->alloc_ucontext = hns_roce_alloc_ucontext; + ib_dev->dealloc_ucontext = hns_roce_dealloc_ucontext; + ib_dev->mmap = hns_roce_mmap; + + /* PD */ + ib_dev->alloc_pd = hns_roce_alloc_pd; + ib_dev->dealloc_pd = hns_roce_dealloc_pd; + + /* AH */ + ib_dev->create_ah = hns_roce_create_ah; + ib_dev->query_ah = hns_roce_query_ah; + ib_dev->destroy_ah = hns_roce_destroy_ah; + + /* QP */ + ib_dev->create_qp = hns_roce_create_qp; + ib_dev->modify_qp = hns_roce_modify_qp; + ib_dev->query_qp = hr_dev->hw->query_qp; + ib_dev->destroy_qp = hr_dev->hw->destroy_qp; + ib_dev->post_send = hr_dev->hw->post_send; + ib_dev->post_recv = hr_dev->hw->post_recv; + + /* CQ */ + ib_dev->create_cq = hns_roce_ib_create_cq; + ib_dev->destroy_cq = hns_roce_ib_destroy_cq; + ib_dev->req_notify_cq = hr_dev->hw->req_notify_cq; + ib_dev->poll_cq = hr_dev->hw->poll_cq; + + /* MR */ + ib_dev->get_dma_mr = hns_roce_get_dma_mr; + ib_dev->reg_user_mr = hns_roce_reg_user_mr; + ib_dev->dereg_mr = hns_roce_dereg_mr; + + /* OTHERS */ + ib_dev->get_port_immutable = hns_roce_port_immutable; + + ret = ib_register_device(ib_dev, NULL); + if (ret) { + dev_err(dev, "ib_register_device failed!\n"); + return ret; + } + + ret = hns_roce_setup_mtu_gids(hr_dev); + if (ret) { + dev_err(dev, "roce_setup_mtu_gids failed!\n"); + goto error_failed_setup_mtu_gids; + } + + spin_lock_init(&iboe->lock); + + iboe->nb.notifier_call = hns_roce_netdev_event; + ret = register_netdevice_notifier(&iboe->nb); + if (ret) { + dev_err(dev, "register_netdevice_notifier failed!\n"); + goto error_failed_setup_mtu_gids; + } + + iboe->nb_inet.notifier_call = hns_roce_inet_event; + ret = register_inetaddr_notifier(&iboe->nb_inet); + if (ret) { + dev_err(dev, "register inet addr notifier failed!\n"); + goto error_failed_register_inetaddr_notifier; + } + + return 0; + +error_failed_register_inetaddr_notifier: + unregister_netdevice_notifier(&iboe->nb); + +error_failed_setup_mtu_gids: + ib_unregister_device(ib_dev); + + return ret; +} + +static int hns_roce_get_cfg(struct hns_roce_dev *hr_dev) +{ + int i; + u8 phy_port; + int port_cnt = 0; + struct device *dev = &hr_dev->pdev->dev; + struct device_node *np = dev->of_node; + struct device_node *net_node; + struct net_device *netdev = NULL; + struct platform_device *pdev = NULL; + struct resource *res; + + if (of_device_is_compatible(np, "hisilicon,hns-roce-v1")) { + hr_dev->hw = &hns_roce_hw_v1; + } else { + dev_err(dev, "device no compatible!\n"); + return -EINVAL; + } + + res = platform_get_resource(hr_dev->pdev, IORESOURCE_MEM, 0); + hr_dev->reg_base = devm_ioremap_resource(dev, res); + if (!hr_dev->reg_base) + return -ENOMEM; + + for (i = 0; i < HNS_ROCE_MAX_PORTS; i++) { + net_node = of_parse_phandle(np, "eth-handle", i); + if (net_node) { + pdev = of_find_device_by_node(net_node); + netdev = platform_get_drvdata(pdev); + phy_port = (u8)i; + if (netdev) { + hr_dev->iboe.netdevs[port_cnt] = netdev; + hr_dev->iboe.phy_port[port_cnt] = phy_port; + } else { + return -ENODEV; + } + port_cnt++; + } + } + + if (port_cnt == 0) { + dev_err(dev, "Unable to get available port by eth-handle!\n"); + return -EINVAL; + } + + hr_dev->caps.num_ports = port_cnt; + + /* Cmd issue mode: 0 is poll, 1 is event */ + hr_dev->cmd_mod = 1; + hr_dev->loop_idc = 0; + + for (i = 0; i < HNS_ROCE_MAX_IRQ_NUM; i++) { + hr_dev->irq[i] = platform_get_irq(hr_dev->pdev, i); + if (hr_dev->irq[i] <= 0) { + dev_err(dev, "Get No.%d irq resource failed!\n", i); + return -EINVAL; + } + + if (of_property_read_string_index(np, "interrupt-names", i, + &hr_dev->irq_names)) + return -EINVAL; + } + + return 0; +} + +static int hns_roce_init_hem(struct hns_roce_dev *hr_dev) +{ + int ret; + struct device *dev = &hr_dev->pdev->dev; + + ret = hns_roce_init_hem_table(hr_dev, &hr_dev->mr_table.mtt_table, + HEM_TYPE_MTT, hr_dev->caps.mtt_entry_sz, + hr_dev->caps.num_mtt_segs, 1); + if (ret) { + dev_err(dev, "Failed to init MTT context memory, aborting.\n"); + return ret; + } + + ret = hns_roce_init_hem_table(hr_dev, &hr_dev->mr_table.mtpt_table, + HEM_TYPE_MTPT, hr_dev->caps.mtpt_entry_sz, + hr_dev->caps.num_mtpts, 1); + if (ret) { + dev_err(dev, "Failed to init MTPT context memory, aborting.\n"); + goto err_unmap_mtt; + } + + ret = hns_roce_init_hem_table(hr_dev, &hr_dev->qp_table.qp_table, + HEM_TYPE_QPC, hr_dev->caps.qpc_entry_sz, + hr_dev->caps.num_qps, 1); + if (ret) { + dev_err(dev, "Failed to init QP context memory, aborting.\n"); + goto err_unmap_dmpt; + } + + ret = hns_roce_init_hem_table(hr_dev, &hr_dev->qp_table.irrl_table, + HEM_TYPE_IRRL, + hr_dev->caps.irrl_entry_sz * + hr_dev->caps.max_qp_init_rdma, + hr_dev->caps.num_qps, 1); + if (ret) { + dev_err(dev, "Failed to init irrl_table memory, aborting.\n"); + goto err_unmap_qp; + } + + ret = hns_roce_init_hem_table(hr_dev, &hr_dev->cq_table.table, + HEM_TYPE_CQC, hr_dev->caps.cqc_entry_sz, + hr_dev->caps.num_cqs, 1); + if (ret) { + dev_err(dev, "Failed to init CQ context memory, aborting.\n"); + goto err_unmap_irrl; + } + + return 0; + +err_unmap_irrl: + hns_roce_cleanup_hem_table(hr_dev, &hr_dev->qp_table.irrl_table); + +err_unmap_qp: + hns_roce_cleanup_hem_table(hr_dev, &hr_dev->qp_table.qp_table); + +err_unmap_dmpt: + hns_roce_cleanup_hem_table(hr_dev, &hr_dev->mr_table.mtpt_table); + +err_unmap_mtt: + hns_roce_cleanup_hem_table(hr_dev, &hr_dev->mr_table.mtt_table); + + return ret; +} + +/** +* hns_roce_setup_hca - setup host channel adapter +* @hr_dev: pointer to hns roce device +* Return : int +*/ +static int hns_roce_setup_hca(struct hns_roce_dev *hr_dev) +{ + int ret; + struct device *dev = &hr_dev->pdev->dev; + + spin_lock_init(&hr_dev->sm_lock); + spin_lock_init(&hr_dev->cq_db_lock); + spin_lock_init(&hr_dev->bt_cmd_lock); + + ret = hns_roce_init_uar_table(hr_dev); + if (ret) { + dev_err(dev, "Failed to initialize uar table. aborting\n"); + return ret; + } + + ret = hns_roce_uar_alloc(hr_dev, &hr_dev->priv_uar); + if (ret) { + dev_err(dev, "Failed to allocate priv_uar.\n"); + goto err_uar_table_free; + } + + ret = hns_roce_init_pd_table(hr_dev); + if (ret) { + dev_err(dev, "Failed to init protected domain table.\n"); + goto err_uar_alloc_free; + } + + ret = hns_roce_init_mr_table(hr_dev); + if (ret) { + dev_err(dev, "Failed to init memory region table.\n"); + goto err_pd_table_free; + } + + ret = hns_roce_init_cq_table(hr_dev); + if (ret) { + dev_err(dev, "Failed to init completion queue table.\n"); + goto err_mr_table_free; + } + + ret = hns_roce_init_qp_table(hr_dev); + if (ret) { + dev_err(dev, "Failed to init queue pair table.\n"); + goto err_cq_table_free; + } + + return 0; + +err_cq_table_free: + hns_roce_cleanup_cq_table(hr_dev); + +err_mr_table_free: + hns_roce_cleanup_mr_table(hr_dev); + +err_pd_table_free: + hns_roce_cleanup_pd_table(hr_dev); + +err_uar_alloc_free: + hns_roce_uar_free(hr_dev, &hr_dev->priv_uar); + +err_uar_table_free: + hns_roce_cleanup_uar_table(hr_dev); + return ret; +} + +/** +* hns_roce_probe - RoCE driver entrance +* @pdev: pointer to platform device +* Return : int +* +*/ +static int hns_roce_probe(struct platform_device *pdev) +{ + int ret; + struct hns_roce_dev *hr_dev; + struct device *dev = &pdev->dev; + + hr_dev = (struct hns_roce_dev *)ib_alloc_device(sizeof(*hr_dev)); + if (!hr_dev) + return -ENOMEM; + + memset((u8 *)hr_dev + sizeof(struct ib_device), 0, + sizeof(struct hns_roce_dev) - sizeof(struct ib_device)); + + hr_dev->pdev = pdev; + platform_set_drvdata(pdev, hr_dev); + + if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64ULL)) && + dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32ULL))) { + dev_err(dev, "No usable DMA addressing mode\n"); + ret = -EIO; + goto error_failed_get_cfg; + } + + ret = hns_roce_get_cfg(hr_dev); + if (ret) { + dev_err(dev, "Get Configuration failed!\n"); + goto error_failed_get_cfg; + } + + ret = hr_dev->hw->reset(hr_dev, true); + if (ret) { + dev_err(dev, "Reset RoCE engine failed!\n"); + goto error_failed_get_cfg; + } + + hr_dev->hw->hw_profile(hr_dev); + + ret = hns_roce_cmd_init(hr_dev); + if (ret) { + dev_err(dev, "cmd init failed!\n"); + goto error_failed_cmd_init; + } + + ret = hns_roce_init_eq_table(hr_dev); + if (ret) { + dev_err(dev, "eq init failed!\n"); + goto error_failed_eq_table; + } + + if (hr_dev->cmd_mod) { + ret = hns_roce_cmd_use_events(hr_dev); + if (ret) { + dev_err(dev, "Switch to event-driven cmd failed!\n"); + goto error_failed_use_event; + } + } + + ret = hns_roce_init_hem(hr_dev); + if (ret) { + dev_err(dev, "init HEM(Hardware Entry Memory) failed!\n"); + goto error_failed_init_hem; + } + + ret = hns_roce_setup_hca(hr_dev); + if (ret) { + dev_err(dev, "setup hca failed!\n"); + goto error_failed_setup_hca; + } + + ret = hr_dev->hw->hw_init(hr_dev); + if (ret) { + dev_err(dev, "hw_init failed!\n"); + goto error_failed_engine_init; + } + + ret = hns_roce_register_device(hr_dev); + if (ret) + goto error_failed_register_device; + + return 0; + +error_failed_register_device: + hr_dev->hw->hw_exit(hr_dev); + +error_failed_engine_init: + hns_roce_cleanup_bitmap(hr_dev); + +error_failed_setup_hca: + hns_roce_cleanup_hem(hr_dev); + +error_failed_init_hem: + if (hr_dev->cmd_mod) + hns_roce_cmd_use_polling(hr_dev); + +error_failed_use_event: + hns_roce_cleanup_eq_table(hr_dev); + +error_failed_eq_table: + hns_roce_cmd_cleanup(hr_dev); + +error_failed_cmd_init: + ret = hr_dev->hw->reset(hr_dev, false); + if (ret) + dev_err(&hr_dev->pdev->dev, "roce_engine reset fail\n"); + +error_failed_get_cfg: + ib_dealloc_device(&hr_dev->ib_dev); + + return ret; +} + +/** +* hns_roce_remove - remove RoCE device +* @pdev: pointer to platform device +*/ +static int hns_roce_remove(struct platform_device *pdev) +{ + struct hns_roce_dev *hr_dev = platform_get_drvdata(pdev); + + hns_roce_unregister_device(hr_dev); + hr_dev->hw->hw_exit(hr_dev); + hns_roce_cleanup_bitmap(hr_dev); + hns_roce_cleanup_hem(hr_dev); + + if (hr_dev->cmd_mod) + hns_roce_cmd_use_polling(hr_dev); + + hns_roce_cleanup_eq_table(hr_dev); + hns_roce_cmd_cleanup(hr_dev); + hr_dev->hw->reset(hr_dev, false); + + ib_dealloc_device(&hr_dev->ib_dev); + + return 0; +} + +static const struct of_device_id hns_roce_of_match[] = { + { .compatible = "hisilicon,hns-roce-v1",}, + {}, +}; +MODULE_DEVICE_TABLE(of, hns_roce_of_match); + +static struct platform_driver hns_roce_driver = { + .probe = hns_roce_probe, + .remove = hns_roce_remove, + .driver = { + .name = DRV_NAME, + .of_match_table = hns_roce_of_match, + }, +}; + +module_platform_driver(hns_roce_driver); + +MODULE_LICENSE("Dual BSD/GPL"); +MODULE_AUTHOR("Wei Hu <xavier.huwei@huawei.com>"); +MODULE_AUTHOR("Nenglong Zhao <zhaonenglong@hisilicon.com>"); +MODULE_AUTHOR("Lijun Ou <oulijun@huawei.com>"); +MODULE_DESCRIPTION("HNS RoCE Driver"); diff --git a/drivers/infiniband/hw/hns/hns_roce_mr.c b/drivers/infiniband/hw/hns/hns_roce_mr.c new file mode 100644 index 000000000000..59f5e2be046b --- /dev/null +++ b/drivers/infiniband/hw/hns/hns_roce_mr.c @@ -0,0 +1,614 @@ +/* + * Copyright (c) 2016 Hisilicon Limited. + * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/platform_device.h> +#include <rdma/ib_umem.h> +#include "hns_roce_device.h" +#include "hns_roce_cmd.h" +#include "hns_roce_hem.h" + +static u32 hw_index_to_key(unsigned long ind) +{ + return (u32)(ind >> 24) | (ind << 8); +} + +static unsigned long key_to_hw_index(u32 key) +{ + return (key << 24) | (key >> 8); +} + +static int hns_roce_sw2hw_mpt(struct hns_roce_dev *hr_dev, + struct hns_roce_cmd_mailbox *mailbox, + unsigned long mpt_index) +{ + return hns_roce_cmd_mbox(hr_dev, mailbox->dma, 0, mpt_index, 0, + HNS_ROCE_CMD_SW2HW_MPT, + HNS_ROCE_CMD_TIME_CLASS_B); +} + +static int hns_roce_hw2sw_mpt(struct hns_roce_dev *hr_dev, + struct hns_roce_cmd_mailbox *mailbox, + unsigned long mpt_index) +{ + return hns_roce_cmd_mbox(hr_dev, 0, mailbox ? mailbox->dma : 0, + mpt_index, !mailbox, HNS_ROCE_CMD_HW2SW_MPT, + HNS_ROCE_CMD_TIME_CLASS_B); +} + +static int hns_roce_buddy_alloc(struct hns_roce_buddy *buddy, int order, + unsigned long *seg) +{ + int o; + u32 m; + + spin_lock(&buddy->lock); + + for (o = order; o <= buddy->max_order; ++o) { + if (buddy->num_free[o]) { + m = 1 << (buddy->max_order - o); + *seg = find_first_bit(buddy->bits[o], m); + if (*seg < m) + goto found; + } + } + spin_unlock(&buddy->lock); + return -1; + + found: + clear_bit(*seg, buddy->bits[o]); + --buddy->num_free[o]; + + while (o > order) { + --o; + *seg <<= 1; + set_bit(*seg ^ 1, buddy->bits[o]); + ++buddy->num_free[o]; + } + + spin_unlock(&buddy->lock); + + *seg <<= order; + return 0; +} + +static void hns_roce_buddy_free(struct hns_roce_buddy *buddy, unsigned long seg, + int order) +{ + seg >>= order; + + spin_lock(&buddy->lock); + + while (test_bit(seg ^ 1, buddy->bits[order])) { + clear_bit(seg ^ 1, buddy->bits[order]); + --buddy->num_free[order]; + seg >>= 1; + ++order; + } + + set_bit(seg, buddy->bits[order]); + ++buddy->num_free[order]; + + spin_unlock(&buddy->lock); +} + +static int hns_roce_buddy_init(struct hns_roce_buddy *buddy, int max_order) +{ + int i, s; + + buddy->max_order = max_order; + spin_lock_init(&buddy->lock); + + buddy->bits = kzalloc((buddy->max_order + 1) * sizeof(long *), + GFP_KERNEL); + buddy->num_free = kzalloc((buddy->max_order + 1) * sizeof(int *), + GFP_KERNEL); + if (!buddy->bits || !buddy->num_free) + goto err_out; + + for (i = 0; i <= buddy->max_order; ++i) { + s = BITS_TO_LONGS(1 << (buddy->max_order - i)); + buddy->bits[i] = kmalloc_array(s, sizeof(long), GFP_KERNEL); + if (!buddy->bits[i]) + goto err_out_free; + + bitmap_zero(buddy->bits[i], 1 << (buddy->max_order - i)); + } + + set_bit(0, buddy->bits[buddy->max_order]); + buddy->num_free[buddy->max_order] = 1; + + return 0; + +err_out_free: + for (i = 0; i <= buddy->max_order; ++i) + kfree(buddy->bits[i]); + +err_out: + kfree(buddy->bits); + kfree(buddy->num_free); + return -ENOMEM; +} + +static void hns_roce_buddy_cleanup(struct hns_roce_buddy *buddy) +{ + int i; + + for (i = 0; i <= buddy->max_order; ++i) + kfree(buddy->bits[i]); + + kfree(buddy->bits); + kfree(buddy->num_free); +} + +static int hns_roce_alloc_mtt_range(struct hns_roce_dev *hr_dev, int order, + unsigned long *seg) +{ + struct hns_roce_mr_table *mr_table = &hr_dev->mr_table; + int ret = 0; + + ret = hns_roce_buddy_alloc(&mr_table->mtt_buddy, order, seg); + if (ret == -1) + return -1; + + if (hns_roce_table_get_range(hr_dev, &mr_table->mtt_table, *seg, + *seg + (1 << order) - 1)) { + hns_roce_buddy_free(&mr_table->mtt_buddy, *seg, order); + return -1; + } + + return 0; +} + +int hns_roce_mtt_init(struct hns_roce_dev *hr_dev, int npages, int page_shift, + struct hns_roce_mtt *mtt) +{ + int ret = 0; + int i; + + /* Page num is zero, correspond to DMA memory register */ + if (!npages) { + mtt->order = -1; + mtt->page_shift = HNS_ROCE_HEM_PAGE_SHIFT; + return 0; + } + + /* Note: if page_shift is zero, FAST memory regsiter */ + mtt->page_shift = page_shift; + + /* Compute MTT entry necessary */ + for (mtt->order = 0, i = HNS_ROCE_MTT_ENTRY_PER_SEG; i < npages; + i <<= 1) + ++mtt->order; + + /* Allocate MTT entry */ + ret = hns_roce_alloc_mtt_range(hr_dev, mtt->order, &mtt->first_seg); + if (ret == -1) + return -ENOMEM; + + return 0; +} + +void hns_roce_mtt_cleanup(struct hns_roce_dev *hr_dev, struct hns_roce_mtt *mtt) +{ + struct hns_roce_mr_table *mr_table = &hr_dev->mr_table; + + if (mtt->order < 0) + return; + + hns_roce_buddy_free(&mr_table->mtt_buddy, mtt->first_seg, mtt->order); + hns_roce_table_put_range(hr_dev, &mr_table->mtt_table, mtt->first_seg, + mtt->first_seg + (1 << mtt->order) - 1); +} + +static int hns_roce_mr_alloc(struct hns_roce_dev *hr_dev, u32 pd, u64 iova, + u64 size, u32 access, int npages, + struct hns_roce_mr *mr) +{ + unsigned long index = 0; + int ret = 0; + struct device *dev = &hr_dev->pdev->dev; + + /* Allocate a key for mr from mr_table */ + ret = hns_roce_bitmap_alloc(&hr_dev->mr_table.mtpt_bitmap, &index); + if (ret == -1) + return -ENOMEM; + + mr->iova = iova; /* MR va starting addr */ + mr->size = size; /* MR addr range */ + mr->pd = pd; /* MR num */ + mr->access = access; /* MR access permit */ + mr->enabled = 0; /* MR active status */ + mr->key = hw_index_to_key(index); /* MR key */ + + if (size == ~0ull) { + mr->type = MR_TYPE_DMA; + mr->pbl_buf = NULL; + mr->pbl_dma_addr = 0; + } else { + mr->type = MR_TYPE_MR; + mr->pbl_buf = dma_alloc_coherent(dev, npages * 8, + &(mr->pbl_dma_addr), + GFP_KERNEL); + if (!mr->pbl_buf) + return -ENOMEM; + } + + return 0; +} + +static void hns_roce_mr_free(struct hns_roce_dev *hr_dev, + struct hns_roce_mr *mr) +{ + struct device *dev = &hr_dev->pdev->dev; + int npages = 0; + int ret; + + if (mr->enabled) { + ret = hns_roce_hw2sw_mpt(hr_dev, NULL, key_to_hw_index(mr->key) + & (hr_dev->caps.num_mtpts - 1)); + if (ret) + dev_warn(dev, "HW2SW_MPT failed (%d)\n", ret); + } + + if (mr->size != ~0ULL) { + npages = ib_umem_page_count(mr->umem); + dma_free_coherent(dev, (unsigned int)(npages * 8), mr->pbl_buf, + mr->pbl_dma_addr); + } + + hns_roce_bitmap_free(&hr_dev->mr_table.mtpt_bitmap, + key_to_hw_index(mr->key)); +} + +static int hns_roce_mr_enable(struct hns_roce_dev *hr_dev, + struct hns_roce_mr *mr) +{ + int ret; + unsigned long mtpt_idx = key_to_hw_index(mr->key); + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_cmd_mailbox *mailbox; + struct hns_roce_mr_table *mr_table = &hr_dev->mr_table; + + /* Prepare HEM entry memory */ + ret = hns_roce_table_get(hr_dev, &mr_table->mtpt_table, mtpt_idx); + if (ret) + return ret; + + /* Allocate mailbox memory */ + mailbox = hns_roce_alloc_cmd_mailbox(hr_dev); + if (IS_ERR(mailbox)) { + ret = PTR_ERR(mailbox); + goto err_table; + } + + ret = hr_dev->hw->write_mtpt(mailbox->buf, mr, mtpt_idx); + if (ret) { + dev_err(dev, "Write mtpt fail!\n"); + goto err_page; + } + + ret = hns_roce_sw2hw_mpt(hr_dev, mailbox, + mtpt_idx & (hr_dev->caps.num_mtpts - 1)); + if (ret) { + dev_err(dev, "SW2HW_MPT failed (%d)\n", ret); + goto err_page; + } + + mr->enabled = 1; + hns_roce_free_cmd_mailbox(hr_dev, mailbox); + + return 0; + +err_page: + hns_roce_free_cmd_mailbox(hr_dev, mailbox); + +err_table: + hns_roce_table_put(hr_dev, &mr_table->mtpt_table, mtpt_idx); + return ret; +} + +static int hns_roce_write_mtt_chunk(struct hns_roce_dev *hr_dev, + struct hns_roce_mtt *mtt, u32 start_index, + u32 npages, u64 *page_list) +{ + u32 i = 0; + __le64 *mtts = NULL; + dma_addr_t dma_handle; + u32 s = start_index * sizeof(u64); + + /* All MTTs must fit in the same page */ + if (start_index / (PAGE_SIZE / sizeof(u64)) != + (start_index + npages - 1) / (PAGE_SIZE / sizeof(u64))) + return -EINVAL; + + if (start_index & (HNS_ROCE_MTT_ENTRY_PER_SEG - 1)) + return -EINVAL; + + mtts = hns_roce_table_find(&hr_dev->mr_table.mtt_table, + mtt->first_seg + s / hr_dev->caps.mtt_entry_sz, + &dma_handle); + if (!mtts) + return -ENOMEM; + + /* Save page addr, low 12 bits : 0 */ + for (i = 0; i < npages; ++i) + mtts[i] = (cpu_to_le64(page_list[i])) >> PAGE_ADDR_SHIFT; + + return 0; +} + +static int hns_roce_write_mtt(struct hns_roce_dev *hr_dev, + struct hns_roce_mtt *mtt, u32 start_index, + u32 npages, u64 *page_list) +{ + int chunk; + int ret; + + if (mtt->order < 0) + return -EINVAL; + + while (npages > 0) { + chunk = min_t(int, PAGE_SIZE / sizeof(u64), npages); + + ret = hns_roce_write_mtt_chunk(hr_dev, mtt, start_index, chunk, + page_list); + if (ret) + return ret; + + npages -= chunk; + start_index += chunk; + page_list += chunk; + } + + return 0; +} + +int hns_roce_buf_write_mtt(struct hns_roce_dev *hr_dev, + struct hns_roce_mtt *mtt, struct hns_roce_buf *buf) +{ + u32 i = 0; + int ret = 0; + u64 *page_list = NULL; + + page_list = kmalloc_array(buf->npages, sizeof(*page_list), GFP_KERNEL); + if (!page_list) + return -ENOMEM; + + for (i = 0; i < buf->npages; ++i) { + if (buf->nbufs == 1) + page_list[i] = buf->direct.map + (i << buf->page_shift); + else + page_list[i] = buf->page_list[i].map; + + } + ret = hns_roce_write_mtt(hr_dev, mtt, 0, buf->npages, page_list); + + kfree(page_list); + + return ret; +} + +int hns_roce_init_mr_table(struct hns_roce_dev *hr_dev) +{ + struct hns_roce_mr_table *mr_table = &hr_dev->mr_table; + int ret = 0; + + ret = hns_roce_bitmap_init(&mr_table->mtpt_bitmap, + hr_dev->caps.num_mtpts, + hr_dev->caps.num_mtpts - 1, + hr_dev->caps.reserved_mrws, 0); + if (ret) + return ret; + + ret = hns_roce_buddy_init(&mr_table->mtt_buddy, + ilog2(hr_dev->caps.num_mtt_segs)); + if (ret) + goto err_buddy; + + return 0; + +err_buddy: + hns_roce_bitmap_cleanup(&mr_table->mtpt_bitmap); + return ret; +} + +void hns_roce_cleanup_mr_table(struct hns_roce_dev *hr_dev) +{ + struct hns_roce_mr_table *mr_table = &hr_dev->mr_table; + + hns_roce_buddy_cleanup(&mr_table->mtt_buddy); + hns_roce_bitmap_cleanup(&mr_table->mtpt_bitmap); +} + +struct ib_mr *hns_roce_get_dma_mr(struct ib_pd *pd, int acc) +{ + int ret = 0; + struct hns_roce_mr *mr = NULL; + + mr = kmalloc(sizeof(*mr), GFP_KERNEL); + if (mr == NULL) + return ERR_PTR(-ENOMEM); + + /* Allocate memory region key */ + ret = hns_roce_mr_alloc(to_hr_dev(pd->device), to_hr_pd(pd)->pdn, 0, + ~0ULL, acc, 0, mr); + if (ret) + goto err_free; + + ret = hns_roce_mr_enable(to_hr_dev(pd->device), mr); + if (ret) + goto err_mr; + + mr->ibmr.rkey = mr->ibmr.lkey = mr->key; + mr->umem = NULL; + + return &mr->ibmr; + +err_mr: + hns_roce_mr_free(to_hr_dev(pd->device), mr); + +err_free: + kfree(mr); + return ERR_PTR(ret); +} + +int hns_roce_ib_umem_write_mtt(struct hns_roce_dev *hr_dev, + struct hns_roce_mtt *mtt, struct ib_umem *umem) +{ + struct scatterlist *sg; + int i, k, entry; + int ret = 0; + u64 *pages; + u32 n; + int len; + + pages = (u64 *) __get_free_page(GFP_KERNEL); + if (!pages) + return -ENOMEM; + + i = n = 0; + + for_each_sg(umem->sg_head.sgl, sg, umem->nmap, entry) { + len = sg_dma_len(sg) >> mtt->page_shift; + for (k = 0; k < len; ++k) { + pages[i++] = sg_dma_address(sg) + umem->page_size * k; + if (i == PAGE_SIZE / sizeof(u64)) { + ret = hns_roce_write_mtt(hr_dev, mtt, n, i, + pages); + if (ret) + goto out; + n += i; + i = 0; + } + } + } + + if (i) + ret = hns_roce_write_mtt(hr_dev, mtt, n, i, pages); + +out: + free_page((unsigned long) pages); + return ret; +} + +static int hns_roce_ib_umem_write_mr(struct hns_roce_mr *mr, + struct ib_umem *umem) +{ + int i = 0; + int entry; + struct scatterlist *sg; + + for_each_sg(umem->sg_head.sgl, sg, umem->nmap, entry) { + mr->pbl_buf[i] = ((u64)sg_dma_address(sg)) >> 12; + i++; + } + + /* Memory barrier */ + mb(); + + return 0; +} + +struct ib_mr *hns_roce_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, + u64 virt_addr, int access_flags, + struct ib_udata *udata) +{ + struct hns_roce_dev *hr_dev = to_hr_dev(pd->device); + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_mr *mr = NULL; + int ret = 0; + int n = 0; + + mr = kmalloc(sizeof(*mr), GFP_KERNEL); + if (!mr) + return ERR_PTR(-ENOMEM); + + mr->umem = ib_umem_get(pd->uobject->context, start, length, + access_flags, 0); + if (IS_ERR(mr->umem)) { + ret = PTR_ERR(mr->umem); + goto err_free; + } + + n = ib_umem_page_count(mr->umem); + if (mr->umem->page_size != HNS_ROCE_HEM_PAGE_SIZE) { + dev_err(dev, "Just support 4K page size but is 0x%x now!\n", + mr->umem->page_size); + } + + if (n > HNS_ROCE_MAX_MTPT_PBL_NUM) { + dev_err(dev, " MR len %lld err. MR is limited to 4G at most!\n", + length); + goto err_umem; + } + + ret = hns_roce_mr_alloc(hr_dev, to_hr_pd(pd)->pdn, virt_addr, length, + access_flags, n, mr); + if (ret) + goto err_umem; + + ret = hns_roce_ib_umem_write_mr(mr, mr->umem); + if (ret) + goto err_mr; + + ret = hns_roce_mr_enable(hr_dev, mr); + if (ret) + goto err_mr; + + mr->ibmr.rkey = mr->ibmr.lkey = mr->key; + + return &mr->ibmr; + +err_mr: + hns_roce_mr_free(hr_dev, mr); + +err_umem: + ib_umem_release(mr->umem); + +err_free: + kfree(mr); + return ERR_PTR(ret); +} + +int hns_roce_dereg_mr(struct ib_mr *ibmr) +{ + struct hns_roce_mr *mr = to_hr_mr(ibmr); + + hns_roce_mr_free(to_hr_dev(ibmr->device), mr); + if (mr->umem) + ib_umem_release(mr->umem); + + kfree(mr); + + return 0; +} diff --git a/drivers/infiniband/hw/hns/hns_roce_pd.c b/drivers/infiniband/hw/hns/hns_roce_pd.c new file mode 100644 index 000000000000..16271b5bd170 --- /dev/null +++ b/drivers/infiniband/hw/hns/hns_roce_pd.c @@ -0,0 +1,144 @@ +/* + * Copyright (c) 2016 Hisilicon Limited. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/platform_device.h> +#include "hns_roce_device.h" + +static int hns_roce_pd_alloc(struct hns_roce_dev *hr_dev, unsigned long *pdn) +{ + struct device *dev = &hr_dev->pdev->dev; + unsigned long pd_number; + int ret = 0; + + ret = hns_roce_bitmap_alloc(&hr_dev->pd_bitmap, &pd_number); + if (ret == -1) { + dev_err(dev, "alloc pdn from pdbitmap failed\n"); + return -ENOMEM; + } + + *pdn = pd_number; + + return 0; +} + +static void hns_roce_pd_free(struct hns_roce_dev *hr_dev, unsigned long pdn) +{ + hns_roce_bitmap_free(&hr_dev->pd_bitmap, pdn); +} + +int hns_roce_init_pd_table(struct hns_roce_dev *hr_dev) +{ + return hns_roce_bitmap_init(&hr_dev->pd_bitmap, hr_dev->caps.num_pds, + hr_dev->caps.num_pds - 1, + hr_dev->caps.reserved_pds, 0); +} + +void hns_roce_cleanup_pd_table(struct hns_roce_dev *hr_dev) +{ + hns_roce_bitmap_cleanup(&hr_dev->pd_bitmap); +} + +struct ib_pd *hns_roce_alloc_pd(struct ib_device *ib_dev, + struct ib_ucontext *context, + struct ib_udata *udata) +{ + struct hns_roce_dev *hr_dev = to_hr_dev(ib_dev); + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_pd *pd; + int ret; + + pd = kmalloc(sizeof(*pd), GFP_KERNEL); + if (!pd) + return ERR_PTR(-ENOMEM); + + ret = hns_roce_pd_alloc(to_hr_dev(ib_dev), &pd->pdn); + if (ret) { + kfree(pd); + dev_err(dev, "[alloc_pd]hns_roce_pd_alloc failed!\n"); + return ERR_PTR(ret); + } + + if (context) { + if (ib_copy_to_udata(udata, &pd->pdn, sizeof(u64))) { + hns_roce_pd_free(to_hr_dev(ib_dev), pd->pdn); + dev_err(dev, "[alloc_pd]ib_copy_to_udata failed!\n"); + kfree(pd); + return ERR_PTR(-EFAULT); + } + } + + return &pd->ibpd; +} + +int hns_roce_dealloc_pd(struct ib_pd *pd) +{ + hns_roce_pd_free(to_hr_dev(pd->device), to_hr_pd(pd)->pdn); + kfree(to_hr_pd(pd)); + + return 0; +} + +int hns_roce_uar_alloc(struct hns_roce_dev *hr_dev, struct hns_roce_uar *uar) +{ + struct resource *res; + int ret = 0; + + /* Using bitmap to manager UAR index */ + ret = hns_roce_bitmap_alloc(&hr_dev->uar_table.bitmap, &uar->index); + if (ret == -1) + return -ENOMEM; + + uar->index = (uar->index - 1) % hr_dev->caps.phy_num_uars + 1; + + res = platform_get_resource(hr_dev->pdev, IORESOURCE_MEM, 0); + uar->pfn = ((res->start) >> PAGE_SHIFT) + uar->index; + + return 0; +} + +void hns_roce_uar_free(struct hns_roce_dev *hr_dev, struct hns_roce_uar *uar) +{ + hns_roce_bitmap_free(&hr_dev->uar_table.bitmap, uar->index); +} + +int hns_roce_init_uar_table(struct hns_roce_dev *hr_dev) +{ + return hns_roce_bitmap_init(&hr_dev->uar_table.bitmap, + hr_dev->caps.num_uars, + hr_dev->caps.num_uars - 1, + hr_dev->caps.reserved_uars, 0); +} + +void hns_roce_cleanup_uar_table(struct hns_roce_dev *hr_dev) +{ + hns_roce_bitmap_cleanup(&hr_dev->uar_table.bitmap); +} diff --git a/drivers/infiniband/hw/hns/hns_roce_qp.c b/drivers/infiniband/hw/hns/hns_roce_qp.c new file mode 100644 index 000000000000..645c18d809a5 --- /dev/null +++ b/drivers/infiniband/hw/hns/hns_roce_qp.c @@ -0,0 +1,855 @@ +/* + * Copyright (c) 2016 Hisilicon Limited. + * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/platform_device.h> +#include <rdma/ib_umem.h> +#include "hns_roce_common.h" +#include "hns_roce_device.h" +#include "hns_roce_hem.h" +#include "hns_roce_user.h" + +#define DB_REG_OFFSET 0x1000 +#define SQP_NUM 12 + +void hns_roce_qp_event(struct hns_roce_dev *hr_dev, u32 qpn, int event_type) +{ + struct hns_roce_qp_table *qp_table = &hr_dev->qp_table; + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_qp *qp; + + spin_lock(&qp_table->lock); + + qp = __hns_roce_qp_lookup(hr_dev, qpn); + if (qp) + atomic_inc(&qp->refcount); + + spin_unlock(&qp_table->lock); + + if (!qp) { + dev_warn(dev, "Async event for bogus QP %08x\n", qpn); + return; + } + + qp->event(qp, (enum hns_roce_event)event_type); + + if (atomic_dec_and_test(&qp->refcount)) + complete(&qp->free); +} + +static void hns_roce_ib_qp_event(struct hns_roce_qp *hr_qp, + enum hns_roce_event type) +{ + struct ib_event event; + struct ib_qp *ibqp = &hr_qp->ibqp; + + if (ibqp->event_handler) { + event.device = ibqp->device; + event.element.qp = ibqp; + switch (type) { + case HNS_ROCE_EVENT_TYPE_PATH_MIG: + event.event = IB_EVENT_PATH_MIG; + break; + case HNS_ROCE_EVENT_TYPE_COMM_EST: + event.event = IB_EVENT_COMM_EST; + break; + case HNS_ROCE_EVENT_TYPE_SQ_DRAINED: + event.event = IB_EVENT_SQ_DRAINED; + break; + case HNS_ROCE_EVENT_TYPE_SRQ_LAST_WQE_REACH: + event.event = IB_EVENT_QP_LAST_WQE_REACHED; + break; + case HNS_ROCE_EVENT_TYPE_WQ_CATAS_ERROR: + event.event = IB_EVENT_QP_FATAL; + break; + case HNS_ROCE_EVENT_TYPE_PATH_MIG_FAILED: + event.event = IB_EVENT_PATH_MIG_ERR; + break; + case HNS_ROCE_EVENT_TYPE_INV_REQ_LOCAL_WQ_ERROR: + event.event = IB_EVENT_QP_REQ_ERR; + break; + case HNS_ROCE_EVENT_TYPE_LOCAL_WQ_ACCESS_ERROR: + event.event = IB_EVENT_QP_ACCESS_ERR; + break; + default: + dev_dbg(ibqp->device->dma_device, "roce_ib: Unexpected event type %d on QP %06lx\n", + type, hr_qp->qpn); + return; + } + ibqp->event_handler(&event, ibqp->qp_context); + } +} + +static int hns_roce_reserve_range_qp(struct hns_roce_dev *hr_dev, int cnt, + int align, unsigned long *base) +{ + struct hns_roce_qp_table *qp_table = &hr_dev->qp_table; + int ret = 0; + unsigned long qpn; + + ret = hns_roce_bitmap_alloc_range(&qp_table->bitmap, cnt, align, &qpn); + if (ret == -1) + return -ENOMEM; + + *base = qpn; + + return 0; +} + +enum hns_roce_qp_state to_hns_roce_state(enum ib_qp_state state) +{ + switch (state) { + case IB_QPS_RESET: + return HNS_ROCE_QP_STATE_RST; + case IB_QPS_INIT: + return HNS_ROCE_QP_STATE_INIT; + case IB_QPS_RTR: + return HNS_ROCE_QP_STATE_RTR; + case IB_QPS_RTS: + return HNS_ROCE_QP_STATE_RTS; + case IB_QPS_SQD: + return HNS_ROCE_QP_STATE_SQD; + case IB_QPS_ERR: + return HNS_ROCE_QP_STATE_ERR; + default: + return HNS_ROCE_QP_NUM_STATE; + } +} + +static int hns_roce_gsi_qp_alloc(struct hns_roce_dev *hr_dev, unsigned long qpn, + struct hns_roce_qp *hr_qp) +{ + struct hns_roce_qp_table *qp_table = &hr_dev->qp_table; + int ret; + + if (!qpn) + return -EINVAL; + + hr_qp->qpn = qpn; + + spin_lock_irq(&qp_table->lock); + ret = radix_tree_insert(&hr_dev->qp_table_tree, + hr_qp->qpn & (hr_dev->caps.num_qps - 1), hr_qp); + spin_unlock_irq(&qp_table->lock); + if (ret) { + dev_err(&hr_dev->pdev->dev, "QPC radix_tree_insert failed\n"); + goto err_put_irrl; + } + + atomic_set(&hr_qp->refcount, 1); + init_completion(&hr_qp->free); + + return 0; + +err_put_irrl: + + return ret; +} + +static int hns_roce_qp_alloc(struct hns_roce_dev *hr_dev, unsigned long qpn, + struct hns_roce_qp *hr_qp) +{ + struct hns_roce_qp_table *qp_table = &hr_dev->qp_table; + struct device *dev = &hr_dev->pdev->dev; + int ret; + + if (!qpn) + return -EINVAL; + + hr_qp->qpn = qpn; + + /* Alloc memory for QPC */ + ret = hns_roce_table_get(hr_dev, &qp_table->qp_table, hr_qp->qpn); + if (ret) { + dev_err(dev, "QPC table get failed\n"); + goto err_out; + } + + /* Alloc memory for IRRL */ + ret = hns_roce_table_get(hr_dev, &qp_table->irrl_table, hr_qp->qpn); + if (ret) { + dev_err(dev, "IRRL table get failed\n"); + goto err_put_qp; + } + + spin_lock_irq(&qp_table->lock); + ret = radix_tree_insert(&hr_dev->qp_table_tree, + hr_qp->qpn & (hr_dev->caps.num_qps - 1), hr_qp); + spin_unlock_irq(&qp_table->lock); + if (ret) { + dev_err(dev, "QPC radix_tree_insert failed\n"); + goto err_put_irrl; + } + + atomic_set(&hr_qp->refcount, 1); + init_completion(&hr_qp->free); + + return 0; + +err_put_irrl: + hns_roce_table_put(hr_dev, &qp_table->irrl_table, hr_qp->qpn); + +err_put_qp: + hns_roce_table_put(hr_dev, &qp_table->qp_table, hr_qp->qpn); + +err_out: + return ret; +} + +void hns_roce_qp_remove(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp) +{ + struct hns_roce_qp_table *qp_table = &hr_dev->qp_table; + unsigned long flags; + + spin_lock_irqsave(&qp_table->lock, flags); + radix_tree_delete(&hr_dev->qp_table_tree, + hr_qp->qpn & (hr_dev->caps.num_qps - 1)); + spin_unlock_irqrestore(&qp_table->lock, flags); +} + +void hns_roce_qp_free(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp) +{ + struct hns_roce_qp_table *qp_table = &hr_dev->qp_table; + + if (atomic_dec_and_test(&hr_qp->refcount)) + complete(&hr_qp->free); + wait_for_completion(&hr_qp->free); + + if ((hr_qp->ibqp.qp_type) != IB_QPT_GSI) { + hns_roce_table_put(hr_dev, &qp_table->irrl_table, hr_qp->qpn); + hns_roce_table_put(hr_dev, &qp_table->qp_table, hr_qp->qpn); + } +} + +void hns_roce_release_range_qp(struct hns_roce_dev *hr_dev, int base_qpn, + int cnt) +{ + struct hns_roce_qp_table *qp_table = &hr_dev->qp_table; + + if (base_qpn < (hr_dev->caps.sqp_start + 2 * hr_dev->caps.num_ports)) + return; + + hns_roce_bitmap_free_range(&qp_table->bitmap, base_qpn, cnt); +} + +static int hns_roce_set_rq_size(struct hns_roce_dev *hr_dev, + struct ib_qp_cap *cap, int is_user, int has_srq, + struct hns_roce_qp *hr_qp) +{ + u32 max_cnt; + struct device *dev = &hr_dev->pdev->dev; + + /* Check the validity of QP support capacity */ + if (cap->max_recv_wr > hr_dev->caps.max_wqes || + cap->max_recv_sge > hr_dev->caps.max_rq_sg) { + dev_err(dev, "RQ WR or sge error!max_recv_wr=%d max_recv_sge=%d\n", + cap->max_recv_wr, cap->max_recv_sge); + return -EINVAL; + } + + /* If srq exit, set zero for relative number of rq */ + if (has_srq) { + if (cap->max_recv_wr) { + dev_dbg(dev, "srq no need config max_recv_wr\n"); + return -EINVAL; + } + + hr_qp->rq.wqe_cnt = hr_qp->rq.max_gs = 0; + } else { + if (is_user && (!cap->max_recv_wr || !cap->max_recv_sge)) { + dev_err(dev, "user space no need config max_recv_wr max_recv_sge\n"); + return -EINVAL; + } + + /* In v1 engine, parameter verification procession */ + max_cnt = cap->max_recv_wr > HNS_ROCE_MIN_WQE_NUM ? + cap->max_recv_wr : HNS_ROCE_MIN_WQE_NUM; + hr_qp->rq.wqe_cnt = roundup_pow_of_two(max_cnt); + + if ((u32)hr_qp->rq.wqe_cnt > hr_dev->caps.max_wqes) { + dev_err(dev, "hns_roce_set_rq_size rq.wqe_cnt too large\n"); + return -EINVAL; + } + + max_cnt = max(1U, cap->max_recv_sge); + hr_qp->rq.max_gs = roundup_pow_of_two(max_cnt); + /* WQE is fixed for 64B */ + hr_qp->rq.wqe_shift = ilog2(hr_dev->caps.max_rq_desc_sz); + } + + cap->max_recv_wr = hr_qp->rq.max_post = hr_qp->rq.wqe_cnt; + cap->max_recv_sge = hr_qp->rq.max_gs; + + return 0; +} + +static int hns_roce_set_user_sq_size(struct hns_roce_dev *hr_dev, + struct hns_roce_qp *hr_qp, + struct hns_roce_ib_create_qp *ucmd) +{ + u32 roundup_sq_stride = roundup_pow_of_two(hr_dev->caps.max_sq_desc_sz); + u8 max_sq_stride = ilog2(roundup_sq_stride); + + /* Sanity check SQ size before proceeding */ + if ((u32)(1 << ucmd->log_sq_bb_count) > hr_dev->caps.max_wqes || + ucmd->log_sq_stride > max_sq_stride || + ucmd->log_sq_stride < HNS_ROCE_IB_MIN_SQ_STRIDE) { + dev_err(&hr_dev->pdev->dev, "check SQ size error!\n"); + return -EINVAL; + } + + hr_qp->sq.wqe_cnt = 1 << ucmd->log_sq_bb_count; + hr_qp->sq.wqe_shift = ucmd->log_sq_stride; + + /* Get buf size, SQ and RQ are aligned to page_szie */ + hr_qp->buff_size = HNS_ROCE_ALOGN_UP((hr_qp->rq.wqe_cnt << + hr_qp->rq.wqe_shift), PAGE_SIZE) + + HNS_ROCE_ALOGN_UP((hr_qp->sq.wqe_cnt << + hr_qp->sq.wqe_shift), PAGE_SIZE); + + hr_qp->sq.offset = 0; + hr_qp->rq.offset = HNS_ROCE_ALOGN_UP((hr_qp->sq.wqe_cnt << + hr_qp->sq.wqe_shift), PAGE_SIZE); + + return 0; +} + +static int hns_roce_set_kernel_sq_size(struct hns_roce_dev *hr_dev, + struct ib_qp_cap *cap, + enum ib_qp_type type, + struct hns_roce_qp *hr_qp) +{ + struct device *dev = &hr_dev->pdev->dev; + u32 max_cnt; + (void)type; + + if (cap->max_send_wr > hr_dev->caps.max_wqes || + cap->max_send_sge > hr_dev->caps.max_sq_sg || + cap->max_inline_data > hr_dev->caps.max_sq_inline) { + dev_err(dev, "hns_roce_set_kernel_sq_size error1\n"); + return -EINVAL; + } + + hr_qp->sq.wqe_shift = ilog2(hr_dev->caps.max_sq_desc_sz); + hr_qp->sq_max_wqes_per_wr = 1; + hr_qp->sq_spare_wqes = 0; + + /* In v1 engine, parameter verification procession */ + max_cnt = cap->max_send_wr > HNS_ROCE_MIN_WQE_NUM ? + cap->max_send_wr : HNS_ROCE_MIN_WQE_NUM; + hr_qp->sq.wqe_cnt = roundup_pow_of_two(max_cnt); + if ((u32)hr_qp->sq.wqe_cnt > hr_dev->caps.max_wqes) { + dev_err(dev, "hns_roce_set_kernel_sq_size sq.wqe_cnt too large\n"); + return -EINVAL; + } + + /* Get data_seg numbers */ + max_cnt = max(1U, cap->max_send_sge); + hr_qp->sq.max_gs = roundup_pow_of_two(max_cnt); + + /* Get buf size, SQ and RQ are aligned to page_szie */ + hr_qp->buff_size = HNS_ROCE_ALOGN_UP((hr_qp->rq.wqe_cnt << + hr_qp->rq.wqe_shift), PAGE_SIZE) + + HNS_ROCE_ALOGN_UP((hr_qp->sq.wqe_cnt << + hr_qp->sq.wqe_shift), PAGE_SIZE); + hr_qp->sq.offset = 0; + hr_qp->rq.offset = HNS_ROCE_ALOGN_UP((hr_qp->sq.wqe_cnt << + hr_qp->sq.wqe_shift), PAGE_SIZE); + + /* Get wr and sge number which send */ + cap->max_send_wr = hr_qp->sq.max_post = hr_qp->sq.wqe_cnt; + cap->max_send_sge = hr_qp->sq.max_gs; + + /* We don't support inline sends for kernel QPs (yet) */ + cap->max_inline_data = 0; + + return 0; +} + +static int hns_roce_create_qp_common(struct hns_roce_dev *hr_dev, + struct ib_pd *ib_pd, + struct ib_qp_init_attr *init_attr, + struct ib_udata *udata, unsigned long sqpn, + struct hns_roce_qp *hr_qp) +{ + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_ib_create_qp ucmd; + unsigned long qpn = 0; + int ret = 0; + + mutex_init(&hr_qp->mutex); + spin_lock_init(&hr_qp->sq.lock); + spin_lock_init(&hr_qp->rq.lock); + + hr_qp->state = IB_QPS_RESET; + + if (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR) + hr_qp->sq_signal_bits = IB_SIGNAL_ALL_WR; + else + hr_qp->sq_signal_bits = IB_SIGNAL_REQ_WR; + + ret = hns_roce_set_rq_size(hr_dev, &init_attr->cap, !!ib_pd->uobject, + !!init_attr->srq, hr_qp); + if (ret) { + dev_err(dev, "hns_roce_set_rq_size failed\n"); + goto err_out; + } + + if (ib_pd->uobject) { + if (ib_copy_from_udata(&ucmd, udata, sizeof(ucmd))) { + dev_err(dev, "ib_copy_from_udata error for create qp\n"); + ret = -EFAULT; + goto err_out; + } + + ret = hns_roce_set_user_sq_size(hr_dev, hr_qp, &ucmd); + if (ret) { + dev_err(dev, "hns_roce_set_user_sq_size error for create qp\n"); + goto err_out; + } + + hr_qp->umem = ib_umem_get(ib_pd->uobject->context, + ucmd.buf_addr, hr_qp->buff_size, 0, + 0); + if (IS_ERR(hr_qp->umem)) { + dev_err(dev, "ib_umem_get error for create qp\n"); + ret = PTR_ERR(hr_qp->umem); + goto err_out; + } + + ret = hns_roce_mtt_init(hr_dev, ib_umem_page_count(hr_qp->umem), + ilog2((unsigned int)hr_qp->umem->page_size), + &hr_qp->mtt); + if (ret) { + dev_err(dev, "hns_roce_mtt_init error for create qp\n"); + goto err_buf; + } + + ret = hns_roce_ib_umem_write_mtt(hr_dev, &hr_qp->mtt, + hr_qp->umem); + if (ret) { + dev_err(dev, "hns_roce_ib_umem_write_mtt error for create qp\n"); + goto err_mtt; + } + } else { + if (init_attr->create_flags & + IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK) { + dev_err(dev, "init_attr->create_flags error!\n"); + ret = -EINVAL; + goto err_out; + } + + if (init_attr->create_flags & IB_QP_CREATE_IPOIB_UD_LSO) { + dev_err(dev, "init_attr->create_flags error!\n"); + ret = -EINVAL; + goto err_out; + } + + /* Set SQ size */ + ret = hns_roce_set_kernel_sq_size(hr_dev, &init_attr->cap, + init_attr->qp_type, hr_qp); + if (ret) { + dev_err(dev, "hns_roce_set_kernel_sq_size error!\n"); + goto err_out; + } + + /* QP doorbell register address */ + hr_qp->sq.db_reg_l = hr_dev->reg_base + ROCEE_DB_SQ_L_0_REG + + DB_REG_OFFSET * hr_dev->priv_uar.index; + hr_qp->rq.db_reg_l = hr_dev->reg_base + + ROCEE_DB_OTHERS_L_0_REG + + DB_REG_OFFSET * hr_dev->priv_uar.index; + + /* Allocate QP buf */ + if (hns_roce_buf_alloc(hr_dev, hr_qp->buff_size, PAGE_SIZE * 2, + &hr_qp->hr_buf)) { + dev_err(dev, "hns_roce_buf_alloc error!\n"); + ret = -ENOMEM; + goto err_out; + } + + /* Write MTT */ + ret = hns_roce_mtt_init(hr_dev, hr_qp->hr_buf.npages, + hr_qp->hr_buf.page_shift, &hr_qp->mtt); + if (ret) { + dev_err(dev, "hns_roce_mtt_init error for kernel create qp\n"); + goto err_buf; + } + + ret = hns_roce_buf_write_mtt(hr_dev, &hr_qp->mtt, + &hr_qp->hr_buf); + if (ret) { + dev_err(dev, "hns_roce_buf_write_mtt error for kernel create qp\n"); + goto err_mtt; + } + + hr_qp->sq.wrid = kmalloc_array(hr_qp->sq.wqe_cnt, sizeof(u64), + GFP_KERNEL); + hr_qp->rq.wrid = kmalloc_array(hr_qp->rq.wqe_cnt, sizeof(u64), + GFP_KERNEL); + if (!hr_qp->sq.wrid || !hr_qp->rq.wrid) { + ret = -ENOMEM; + goto err_wrid; + } + } + + if (sqpn) { + qpn = sqpn; + } else { + /* Get QPN */ + ret = hns_roce_reserve_range_qp(hr_dev, 1, 1, &qpn); + if (ret) { + dev_err(dev, "hns_roce_reserve_range_qp alloc qpn error\n"); + goto err_wrid; + } + } + + if ((init_attr->qp_type) == IB_QPT_GSI) { + ret = hns_roce_gsi_qp_alloc(hr_dev, qpn, hr_qp); + if (ret) { + dev_err(dev, "hns_roce_qp_alloc failed!\n"); + goto err_qpn; + } + } else { + ret = hns_roce_qp_alloc(hr_dev, qpn, hr_qp); + if (ret) { + dev_err(dev, "hns_roce_qp_alloc failed!\n"); + goto err_qpn; + } + } + + if (sqpn) + hr_qp->doorbell_qpn = 1; + else + hr_qp->doorbell_qpn = cpu_to_le64(hr_qp->qpn); + + hr_qp->event = hns_roce_ib_qp_event; + + return 0; + +err_qpn: + if (!sqpn) + hns_roce_release_range_qp(hr_dev, qpn, 1); + +err_wrid: + kfree(hr_qp->sq.wrid); + kfree(hr_qp->rq.wrid); + +err_mtt: + hns_roce_mtt_cleanup(hr_dev, &hr_qp->mtt); + +err_buf: + if (ib_pd->uobject) + ib_umem_release(hr_qp->umem); + else + hns_roce_buf_free(hr_dev, hr_qp->buff_size, &hr_qp->hr_buf); + +err_out: + return ret; +} + +struct ib_qp *hns_roce_create_qp(struct ib_pd *pd, + struct ib_qp_init_attr *init_attr, + struct ib_udata *udata) +{ + struct hns_roce_dev *hr_dev = to_hr_dev(pd->device); + struct device *dev = &hr_dev->pdev->dev; + struct hns_roce_sqp *hr_sqp; + struct hns_roce_qp *hr_qp; + int ret; + + switch (init_attr->qp_type) { + case IB_QPT_RC: { + hr_qp = kzalloc(sizeof(*hr_qp), GFP_KERNEL); + if (!hr_qp) + return ERR_PTR(-ENOMEM); + + ret = hns_roce_create_qp_common(hr_dev, pd, init_attr, udata, 0, + hr_qp); + if (ret) { + dev_err(dev, "Create RC QP failed\n"); + kfree(hr_qp); + return ERR_PTR(ret); + } + + hr_qp->ibqp.qp_num = hr_qp->qpn; + + break; + } + case IB_QPT_GSI: { + /* Userspace is not allowed to create special QPs: */ + if (pd->uobject) { + dev_err(dev, "not support usr space GSI\n"); + return ERR_PTR(-EINVAL); + } + + hr_sqp = kzalloc(sizeof(*hr_sqp), GFP_KERNEL); + if (!hr_sqp) + return ERR_PTR(-ENOMEM); + + hr_qp = &hr_sqp->hr_qp; + + ret = hns_roce_create_qp_common(hr_dev, pd, init_attr, udata, + hr_dev->caps.sqp_start + + hr_dev->caps.num_ports + + init_attr->port_num - 1, hr_qp); + if (ret) { + dev_err(dev, "Create GSI QP failed!\n"); + kfree(hr_sqp); + return ERR_PTR(ret); + } + + hr_qp->port = (init_attr->port_num - 1); + hr_qp->ibqp.qp_num = hr_dev->caps.sqp_start + + hr_dev->caps.num_ports + + init_attr->port_num - 1; + break; + } + default:{ + dev_err(dev, "not support QP type %d\n", init_attr->qp_type); + return ERR_PTR(-EINVAL); + } + } + + return &hr_qp->ibqp; +} + +int to_hr_qp_type(int qp_type) +{ + int transport_type; + + if (qp_type == IB_QPT_RC) + transport_type = SERV_TYPE_RC; + else if (qp_type == IB_QPT_UC) + transport_type = SERV_TYPE_UC; + else if (qp_type == IB_QPT_UD) + transport_type = SERV_TYPE_UD; + else if (qp_type == IB_QPT_GSI) + transport_type = SERV_TYPE_UD; + else + transport_type = -1; + + return transport_type; +} + +int hns_roce_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, + int attr_mask, struct ib_udata *udata) +{ + struct hns_roce_dev *hr_dev = to_hr_dev(ibqp->device); + struct hns_roce_qp *hr_qp = to_hr_qp(ibqp); + enum ib_qp_state cur_state, new_state; + struct device *dev = &hr_dev->pdev->dev; + int ret = -EINVAL; + int p; + + mutex_lock(&hr_qp->mutex); + + cur_state = attr_mask & IB_QP_CUR_STATE ? + attr->cur_qp_state : (enum ib_qp_state)hr_qp->state; + new_state = attr_mask & IB_QP_STATE ? + attr->qp_state : cur_state; + + if (!ib_modify_qp_is_ok(cur_state, new_state, ibqp->qp_type, attr_mask, + IB_LINK_LAYER_ETHERNET)) { + dev_err(dev, "ib_modify_qp_is_ok failed\n"); + goto out; + } + + if ((attr_mask & IB_QP_PORT) && + (attr->port_num == 0 || attr->port_num > hr_dev->caps.num_ports)) { + dev_err(dev, "attr port_num invalid.attr->port_num=%d\n", + attr->port_num); + goto out; + } + + if (attr_mask & IB_QP_PKEY_INDEX) { + p = attr_mask & IB_QP_PORT ? (attr->port_num - 1) : hr_qp->port; + if (attr->pkey_index >= hr_dev->caps.pkey_table_len[p]) { + dev_err(dev, "attr pkey_index invalid.attr->pkey_index=%d\n", + attr->pkey_index); + goto out; + } + } + + if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC && + attr->max_rd_atomic > hr_dev->caps.max_qp_init_rdma) { + dev_err(dev, "attr max_rd_atomic invalid.attr->max_rd_atomic=%d\n", + attr->max_rd_atomic); + goto out; + } + + if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC && + attr->max_dest_rd_atomic > hr_dev->caps.max_qp_dest_rdma) { + dev_err(dev, "attr max_dest_rd_atomic invalid.attr->max_dest_rd_atomic=%d\n", + attr->max_dest_rd_atomic); + goto out; + } + + if (cur_state == new_state && cur_state == IB_QPS_RESET) { + ret = -EPERM; + dev_err(dev, "cur_state=%d new_state=%d\n", cur_state, + new_state); + goto out; + } + + ret = hr_dev->hw->modify_qp(ibqp, attr, attr_mask, cur_state, + new_state); + +out: + mutex_unlock(&hr_qp->mutex); + + return ret; +} + +void hns_roce_lock_cqs(struct hns_roce_cq *send_cq, struct hns_roce_cq *recv_cq) + __acquires(&send_cq->lock) __acquires(&recv_cq->lock) +{ + if (send_cq == recv_cq) { + spin_lock_irq(&send_cq->lock); + __acquire(&recv_cq->lock); + } else if (send_cq->cqn < recv_cq->cqn) { + spin_lock_irq(&send_cq->lock); + spin_lock_nested(&recv_cq->lock, SINGLE_DEPTH_NESTING); + } else { + spin_lock_irq(&recv_cq->lock); + spin_lock_nested(&send_cq->lock, SINGLE_DEPTH_NESTING); + } +} + +void hns_roce_unlock_cqs(struct hns_roce_cq *send_cq, + struct hns_roce_cq *recv_cq) __releases(&send_cq->lock) + __releases(&recv_cq->lock) +{ + if (send_cq == recv_cq) { + __release(&recv_cq->lock); + spin_unlock_irq(&send_cq->lock); + } else if (send_cq->cqn < recv_cq->cqn) { + spin_unlock(&recv_cq->lock); + spin_unlock_irq(&send_cq->lock); + } else { + spin_unlock(&send_cq->lock); + spin_unlock_irq(&recv_cq->lock); + } +} + +__be32 send_ieth(struct ib_send_wr *wr) +{ + switch (wr->opcode) { + case IB_WR_SEND_WITH_IMM: + case IB_WR_RDMA_WRITE_WITH_IMM: + return cpu_to_le32(wr->ex.imm_data); + case IB_WR_SEND_WITH_INV: + return cpu_to_le32(wr->ex.invalidate_rkey); + default: + return 0; + } +} + +static void *get_wqe(struct hns_roce_qp *hr_qp, int offset) +{ + + return hns_roce_buf_offset(&hr_qp->hr_buf, offset); +} + +void *get_recv_wqe(struct hns_roce_qp *hr_qp, int n) +{ + struct ib_qp *ibqp = &hr_qp->ibqp; + struct hns_roce_dev *hr_dev = to_hr_dev(ibqp->device); + + if ((n < 0) || (n > hr_qp->rq.wqe_cnt)) { + dev_err(&hr_dev->pdev->dev, "rq wqe index:%d,rq wqe cnt:%d\r\n", + n, hr_qp->rq.wqe_cnt); + return NULL; + } + + return get_wqe(hr_qp, hr_qp->rq.offset + (n << hr_qp->rq.wqe_shift)); +} + +void *get_send_wqe(struct hns_roce_qp *hr_qp, int n) +{ + struct ib_qp *ibqp = &hr_qp->ibqp; + struct hns_roce_dev *hr_dev = to_hr_dev(ibqp->device); + + if ((n < 0) || (n > hr_qp->sq.wqe_cnt)) { + dev_err(&hr_dev->pdev->dev, "sq wqe index:%d,sq wqe cnt:%d\r\n", + n, hr_qp->sq.wqe_cnt); + return NULL; + } + + return get_wqe(hr_qp, hr_qp->sq.offset + (n << hr_qp->sq.wqe_shift)); +} + +bool hns_roce_wq_overflow(struct hns_roce_wq *hr_wq, int nreq, + struct ib_cq *ib_cq) +{ + struct hns_roce_cq *hr_cq; + u32 cur; + + cur = hr_wq->head - hr_wq->tail; + if (likely(cur + nreq < hr_wq->max_post)) + return 0; + + hr_cq = to_hr_cq(ib_cq); + spin_lock(&hr_cq->lock); + cur = hr_wq->head - hr_wq->tail; + spin_unlock(&hr_cq->lock); + + return cur + nreq >= hr_wq->max_post; +} + +int hns_roce_init_qp_table(struct hns_roce_dev *hr_dev) +{ + struct hns_roce_qp_table *qp_table = &hr_dev->qp_table; + int reserved_from_top = 0; + int ret; + + spin_lock_init(&qp_table->lock); + INIT_RADIX_TREE(&hr_dev->qp_table_tree, GFP_ATOMIC); + + /* A port include two SQP, six port total 12 */ + ret = hns_roce_bitmap_init(&qp_table->bitmap, hr_dev->caps.num_qps, + hr_dev->caps.num_qps - 1, + hr_dev->caps.sqp_start + SQP_NUM, + reserved_from_top); + if (ret) { + dev_err(&hr_dev->pdev->dev, "qp bitmap init failed!error=%d\n", + ret); + return ret; + } + + return 0; +} + +void hns_roce_cleanup_qp_table(struct hns_roce_dev *hr_dev) +{ + hns_roce_bitmap_cleanup(&hr_dev->qp_table.bitmap); +} diff --git a/drivers/infiniband/hw/hns/hns_roce_user.h b/drivers/infiniband/hw/hns/hns_roce_user.h new file mode 100644 index 000000000000..a28f761a9f65 --- /dev/null +++ b/drivers/infiniband/hw/hns/hns_roce_user.h @@ -0,0 +1,53 @@ +/* + * Copyright (c) 2016 Hisilicon Limited. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef _HNS_ROCE_USER_H +#define _HNS_ROCE_USER_H + +struct hns_roce_ib_create_cq { + __u64 buf_addr; +}; + +struct hns_roce_ib_create_qp { + __u64 buf_addr; + __u64 db_addr; + __u8 log_sq_bb_count; + __u8 log_sq_stride; + __u8 sq_no_prefetch; + __u8 reserved[5]; +}; + +struct hns_roce_ib_alloc_ucontext_resp { + __u32 qp_tab_size; +}; + +#endif /*_HNS_ROCE_USER_H */ |